690256233 has 12 divisors (see below), whose sum is σ = 997384128. Its totient is φ = 460010520.

The previous prime is 690256223. The next prime is 690256267. The reversal of 690256233 is 332652096.

690256233 is a `hidden beast` number, since 6 + 9 + 0 + 25 + 623 + 3 = 666.

It is not a de Polignac number, because 690256233 - 2⁹ = 690255721 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (690256223) 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, 17716 + ... + 41162.

It is an arithmetic number, because the mean of its divisors is an integer number (83115344).

Almost surely, 2^690256233 is an apocalyptic number.

It is an amenable number.

690256233 is a deficient number, since it is larger than the sum of its proper divisors (307127895).

690256233 is a wasteful number, since it uses less digits than its factorization.

690256233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26724 (or 26721 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 690256233 is about 26272.7279322114. The cubic root of 690256233 is about 883.7649611784.

The spelling of 690256233 in words is "six hundred ninety million, two hundred fifty-six thousand, two hundred thirty-three".