697433880 has 256 divisors, whose sum is σ = 2489356800. Its totient is φ = 154091520.

The previous prime is 697433873. The next prime is 697433921. The reversal of 697433880 is 88334796.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1664311 + ... + 1664729.

It is an arithmetic number, because the mean of its divisors is an integer number (9724050).

Almost surely, 2^697433880 is an apocalyptic number.

697433880 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 697433880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244678400).

697433880 is an abundant number, since it is smaller than the sum of its proper divisors (1791922920).

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

697433880 is a wasteful number, since it uses less digits than its factorization.

697433880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 697433880 is about 26408.9734749384. The cubic root of 697433880 is about 886.8176883604.

The spelling of 697433880 in words is "six hundred ninety-seven million, four hundred thirty-three thousand, eight hundred eighty".