697812480 has 240 divisors, whose sum is σ = 2497233024. Its totient is φ = 179896320.

The previous prime is 697812463. The next prime is 697812491. The reversal of 697812480 is 84218796.

697812480 is a `hidden beast` number, since 6 + 97 + 81 + 2 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713752 + ... + 714728.

Almost surely, 2^697812480 is an apocalyptic number.

697812480 is a gapful number since it is divisible by the number (60) 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 697812480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248616512).

697812480 is an abundant number, since it is smaller than the sum of its proper divisors (1799420544).

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

697812480 is a wasteful number, since it uses less digits than its factorization.

697812480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 697812480 is about 26416.1405205227. The cubic root of 697812480 is about 886.9781281533.

The spelling of 697812480 in words is "six hundred ninety-seven million, eight hundred twelve thousand, four hundred eighty".