46651978 has 16 divisors (see below), whose sum is σ = 75495240. Its totient is φ = 21538816.

The previous prime is 46651967. The next prime is 46651999. The reversal of 46651978 is 87915664.

It can be written as a sum of positive squares in 4 ways, for example, as 45522009 + 1129969 = 6747^2 + 1063^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11143 + ... + 14746.

Almost surely, 2^46651978 is an apocalyptic number.

46651978 is a deficient number, since it is larger than the sum of its proper divisors (28843262).

46651978 is a wasteful number, since it uses less digits than its factorization.

46651978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25961.

The product of its digits is 362880, while the sum is 46.

The square root of 46651978 is about 6830.2253257122. The cubic root of 46651978 is about 359.9896550525.

The spelling of 46651978 in words is "forty-six million, six hundred fifty-one thousand, nine hundred seventy-eight".