697686276 has 96 divisors (see below), whose sum is σ = 1924715520. Its totient is φ = 192576384.

The previous prime is 697686247. The next prime is 697686277. The reversal of 697686276 is 672686796.

It is a happy number.

It is a super-2 number, since 2×697686276² = 973532279437496352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (697686277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297115 + ... + 299453.

It is an arithmetic number, because the mean of its divisors is an integer number (20049120).

Almost surely, 2^697686276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697686276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (962357760).

697686276 is an abundant number, since it is smaller than the sum of its proper divisors (1227029244).

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

697686276 is a wasteful number, since it uses less digits than its factorization.

697686276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473 (or 2471 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 57.

The square root of 697686276 is about 26413.7516456864. The cubic root of 697686276 is about 886.9246529767.

The spelling of 697686276 in words is "six hundred ninety-seven million, six hundred eighty-six thousand, two hundred seventy-six".