690625473 has 8 divisors (see below), whose sum is σ = 940426368. Its totient is φ = 450620784.

The previous prime is 690625447. The next prime is 690625499. The reversal of 690625473 is 374526096.

It is an interprime number because it is at equal distance from previous prime (690625447) and next prime (690625499).

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

It is not a de Polignac number, because 690625473 - 2¹² = 690621377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690625073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2448886 + ... + 2449167.

It is an arithmetic number, because the mean of its divisors is an integer number (117553296).

Almost surely, 2^690625473 is an apocalyptic number.

It is an amenable number.

690625473 is a deficient number, since it is larger than the sum of its proper divisors (249800895).

690625473 is a wasteful number, since it uses less digits than its factorization.

690625473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898103.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 690625473 is about 26279.7540513605. The cubic root of 690625473 is about 883.9225177443.

The spelling of 690625473 in words is "six hundred ninety million, six hundred twenty-five thousand, four hundred seventy-three".