1699797456 has 360 divisors, whose sum is σ = 6027590400. Its totient is φ = 444165120.

The previous prime is 1699797419. The next prime is 1699797461. The reversal of 1699797456 is 6547979961.

1699797456 is a `hidden beast` number, since 1 + 6 + 9 + 97 + 97 + 456 = 666.

It is a super-2 number, since 2×1699797456² = 5778622782848143872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1699797393 and 1699797402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4155780 + ... + 4156188.

Almost surely, 2^1699797456 is an apocalyptic number.

1699797456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1699797456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3013795200).

1699797456 is an abundant number, since it is smaller than the sum of its proper divisors (4327792944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1699797456 is a wasteful number, since it uses less digits than its factorization.

1699797456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 471 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The square root of 1699797456 is about 41228.5999762301. The cubic root of 1699797456 is about 1193.4357914449.

The spelling of 1699797456 in words is "one billion, six hundred ninety-nine million, seven hundred ninety-seven thousand, four hundred fifty-six".