46390639 has 4 divisors (see below), whose sum is σ = 47522160. Its totient is φ = 45259120.

The previous prime is 46390621. The next prime is 46390649. The reversal of 46390639 is 93609364.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 46390639 - 2⁵ = 46390607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46390649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565699 + ... + 565780.

It is an arithmetic number, because the mean of its divisors is an integer number (11880540).

Almost surely, 2^46390639 is an apocalyptic number.

46390639 is a deficient number, since it is larger than the sum of its proper divisors (1131521).

46390639 is a wasteful number, since it uses less digits than its factorization.

46390639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131520.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 46390639 is about 6811.0673906518. The cubic root of 46390639 is about 359.3161890807.

The spelling of 46390639 in words is "forty-six million, three hundred ninety thousand, six hundred thirty-nine".