690757461 has 12 divisors (see below), whose sum is σ = 1020965088. Its totient is φ = 449795304.

The previous prime is 690757433. The next prime is 690757489. The reversal of 690757461 is 164757096.

It is a happy number.

690757461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (690757433) and next prime (690757489).

It is not a de Polignac number, because 690757461 - 2¹⁵ = 690724693 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690750461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892065 + ... + 892838.

It is an arithmetic number, because the mean of its divisors is an integer number (85080424).

Almost surely, 2^690757461 is an apocalyptic number.

It is an amenable number.

690757461 is a deficient number, since it is larger than the sum of its proper divisors (330207627).

690757461 is a wasteful number, since it uses less digits than its factorization.

690757461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784952 (or 1784949 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 690757461 is about 26282.2651421068. The cubic root of 690757461 is about 883.9788240629.

The spelling of 690757461 in words is "six hundred ninety million, seven hundred fifty-seven thousand, four hundred sixty-one".