46638739 has 16 divisors (see below), whose sum is σ = 54720000. Its totient is φ = 39733512.

The previous prime is 46638721. The next prime is 46638743. The reversal of 46638739 is 93783664.

It is not a de Polignac number, because 46638739 - 2⁵ = 46638707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46638139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77562 + ... + 78160.

It is an arithmetic number, because the mean of its divisors is an integer number (3420000).

Almost surely, 2^46638739 is an apocalyptic number.

46638739 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

46638739 is a deficient number, since it is larger than the sum of its proper divisors (8081261).

46638739 is an equidigital number, since it uses as much as digits as its factorization.

46638739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 833 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 46638739 is about 6829.2561088306. The cubic root of 46638739 is about 359.9555989478.

The spelling of 46638739 in words is "forty-six million, six hundred thirty-eight thousand, seven hundred thirty-nine".