697012776 has 80 divisors (see below), whose sum is σ = 1964556000. Its totient is φ = 230877216.

The previous prime is 697012753. The next prime is 697012871. The reversal of 697012776 is 677210796.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 102325 + ... + 108923.

It is an arithmetic number, because the mean of its divisors is an integer number (24556950).

Almost surely, 2^697012776 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 697012776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982278000).

697012776 is an abundant number, since it is smaller than the sum of its proper divisors (1267543224).

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

697012776 is a wasteful number, since it uses less digits than its factorization.

697012776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780 (or 6767 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 697012776 is about 26400.9995265331. Note that the first 3 decimals coincide. The cubic root of 697012776 is about 886.6391683735.

The spelling of 697012776 in words is "six hundred ninety-seven million, twelve thousand, seven hundred seventy-six".