45986639 has 2 divisors, whose sum is σ = 45986640. Its totient is φ = 45986638.

The previous prime is 45986599. The next prime is 45986641. The reversal of 45986639 is 93668954.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45986639 - 2⁸ = 45986383 is a prime.

It is a super-2 number, since 2×45986639² = 4229541933032642, which contains 22 as substring.

Together with 45986641, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45986659) 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 as a sum of consecutive naturals, namely, 22993319 + 22993320.

It is an arithmetic number, because the mean of its divisors is an integer number (22993320).

Almost surely, 2^45986639 is an apocalyptic number.

45986639 is a deficient number, since it is larger than the sum of its proper divisors (1).

45986639 is an equidigital number, since it uses as much as digits as its factorization.

45986639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 50.

The square root of 45986639 is about 6781.3449256029. The cubic root of 45986639 is about 358.2700930883.

The spelling of 45986639 in words is "forty-five million, nine hundred eighty-six thousand, six hundred thirty-nine".