690841473 has 8 divisors (see below), whose sum is σ = 1052710848. Its totient is φ = 394766544.

The previous prime is 690841457. The next prime is 690841493. The reversal of 690841473 is 374148096.

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

It is not a de Polignac number, because 690841473 - 2⁴ = 690841457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690841423) 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, 16448586 + ... + 16448627.

It is an arithmetic number, because the mean of its divisors is an integer number (131588856).

Almost surely, 2^690841473 is an apocalyptic number.

It is an amenable number.

690841473 is a deficient number, since it is larger than the sum of its proper divisors (361869375).

690841473 is a wasteful number, since it uses less digits than its factorization.

690841473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32897223.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 690841473 is about 26283.8633575812. The cubic root of 690841473 is about 884.0146599979.

The spelling of 690841473 in words is "six hundred ninety million, eight hundred forty-one thousand, four hundred seventy-three".