47236690 has 16 divisors (see below), whose sum is σ = 85869720. Its totient is φ = 18707200.

The previous prime is 47236667. The next prime is 47236697. The reversal of 47236690 is 9663274.

It can be written as a sum of positive squares in 4 ways, for example, as 42497361 + 4739329 = 6519^2 + 2177^2 .

It is a super-2 number, since 2×47236690² = 4462609764312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47236697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22375 + ... + 24394.

Almost surely, 2^47236690 is an apocalyptic number.

47236690 is a deficient number, since it is larger than the sum of its proper divisors (38633030).

47236690 is a wasteful number, since it uses less digits than its factorization.

47236690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46877.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 47236690 is about 6872.8953142035. The cubic root of 47236690 is about 361.4873904134.

The spelling of 47236690 in words is "forty-seven million, two hundred thirty-six thousand, six hundred ninety".