697630887 has 48 divisors (see below), whose sum is σ = 1118531232. Its totient is φ = 432967680.

The previous prime is 697630859. The next prime is 697630897. The reversal of 697630887 is 788036796.

It is not a de Polignac number, because 697630887 - 2¹⁴ = 697614503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697630807) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 399837 + ... + 401577.

It is an arithmetic number, because the mean of its divisors is an integer number (23302734).

Almost surely, 2^697630887 is an apocalyptic number.

697630887 is a deficient number, since it is larger than the sum of its proper divisors (420900345).

697630887 is a wasteful number, since it uses less digits than its factorization.

697630887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870 (or 1858 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 697630887 is about 26412.7031369377. The cubic root of 697630887 is about 886.9011815056.

The spelling of 697630887 in words is "six hundred ninety-seven million, six hundred thirty thousand, eight hundred eighty-seven".