45931669 has 12 divisors (see below), whose sum is σ = 53965548. Its totient is φ = 38976000.

The previous prime is 45931663. The next prime is 45931703. The reversal of 45931669 is 96613954.

It can be written as a sum of positive squares in 2 ways, for example, as 42745444 + 3186225 = 6538^2 + 1785^2 .

It is not a de Polignac number, because 45931669 - 2²⁵ = 12377237 is a prime.

It is a super-2 number, since 2×45931669² = 4219436434251122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45931663) 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, 309 + ... + 9589.

It is an arithmetic number, because the mean of its divisors is an integer number (4497129).

Almost surely, 2^45931669 is an apocalyptic number.

45931669 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

45931669 is a deficient number, since it is larger than the sum of its proper divisors (8033879).

45931669 is a wasteful number, since it uses less digits than its factorization.

45931669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9396 (or 9389 counting only the distinct ones).

The product of its digits is 174960, while the sum is 43.

The square root of 45931669 is about 6777.2906828614. The cubic root of 45931669 is about 358.1272837872.

The spelling of 45931669 in words is "forty-five million, nine hundred thirty-one thousand, six hundred sixty-nine".