690707136 has 84 divisors (see below), whose sum is σ = 2125891608. Its totient is φ = 197342208.

The previous prime is 690707131. The next prime is 690707137. The reversal of 690707136 is 631707096.

It is a tau number, because it is divible by the number of its divisors (84).

It is a junction number, because it is equal to n+sod(n) for n = 690707094 and 690707103.

It is not an unprimeable number, because it can be changed into a prime (690707131) 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 11 ways as a sum of consecutive naturals, for example, 27301 + ... + 46116.

Almost surely, 2^690707136 is an apocalyptic number.

It is an amenable number.

690707136 is an abundant number, since it is smaller than the sum of its proper divisors (1435184472).

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

690707136 is a wasteful number, since it uses less digits than its factorization.

690707136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73446 (or 73429 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 690707136 is about 26281.3077300198. The cubic root of 690707136 is about 883.9573561734.

The spelling of 690707136 in words is "six hundred ninety million, seven hundred seven thousand, one hundred thirty-six".