690956893 has 8 divisors (see below), whose sum is σ = 754996320. Its totient is φ = 627121680.

The previous prime is 690956839. The next prime is 690956909. The reversal of 690956893 is 398659096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690956893 - 2¹³ = 690948701 is a prime.

It is a super-3 number, since 3×690956893³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690956393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43930 + ... + 57547.

It is an arithmetic number, because the mean of its divisors is an integer number (94374540).

Almost surely, 2^690956893 is an apocalyptic number.

It is an amenable number.

690956893 is a deficient number, since it is larger than the sum of its proper divisors (64039427).

690956893 is a wasteful number, since it uses less digits than its factorization.

690956893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102107.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The square root of 690956893 is about 26286.0589096198. The cubic root of 690956893 is about 884.0638885085.

The spelling of 690956893 in words is "six hundred ninety million, nine hundred fifty-six thousand, eight hundred ninety-three".