1697409312 has 48 divisors (see below), whose sum is σ = 4480362432. Its totient is φ = 562671360.

The previous prime is 1697409293. The next prime is 1697409317. The reversal of 1697409312 is 2139047961.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1697409317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31468 + ... + 66219.

It is an arithmetic number, because the mean of its divisors is an integer number (93340884).

Almost surely, 2^1697409312 is an apocalyptic number.

1697409312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1697409312 is an abundant number, since it is smaller than the sum of its proper divisors (2782953120).

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

1697409312 is a wasteful number, since it uses less digits than its factorization.

1697409312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97881 (or 97873 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1697409312 is about 41199.6275711322. The cubic root of 1697409312 is about 1192.8766204462.

The spelling of 1697409312 in words is "one billion, six hundred ninety-seven million, four hundred nine thousand, three hundred twelve".