690972350 has 12 divisors (see below), whose sum is σ = 1285208664. Its totient is φ = 276388920.

The previous prime is 690972343. The next prime is 690972367. The reversal of 690972350 is 53279096.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 690972298 and 690972307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6909674 + ... + 6909773.

It is an arithmetic number, because the mean of its divisors is an integer number (107100722).

Almost surely, 2^690972350 is an apocalyptic number.

690972350 is a deficient number, since it is larger than the sum of its proper divisors (594236314).

690972350 is a wasteful number, since it uses less digits than its factorization.

690972350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13819459 (or 13819454 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 690972350 is about 26286.3529231425. The cubic root of 690972350 is about 884.0704807546.

The spelling of 690972350 in words is "six hundred ninety million, nine hundred seventy-two thousand, three hundred fifty".