696931380 has 36 divisors (see below), whose sum is σ = 2114025732. Its totient is φ = 185848320.

The previous prime is 696931379. The next prime is 696931421. The reversal of 696931380 is 83139696.

It can be written as a sum of positive squares in 2 ways, for example, as 453945636 + 242985744 = 21306^2 + 15588^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 1935741 + ... + 1936100.

It is an arithmetic number, because the mean of its divisors is an integer number (58722937).

Almost surely, 2^696931380 is an apocalyptic number.

696931380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

696931380 is an abundant number, since it is smaller than the sum of its proper divisors (1417094352).

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

696931380 is a wasteful number, since it uses less digits than its factorization.

696931380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871856 (or 3871851 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 696931380 is about 26399.4579489807. The cubic root of 696931380 is about 886.6046536111.

The spelling of 696931380 in words is "six hundred ninety-six million, nine hundred thirty-one thousand, three hundred eighty".