946628639 has 12 divisors (see below), whose sum is σ = 1045999080. Its totient is φ = 849616560.

The previous prime is 946628611. The next prime is 946628651. The reversal of 946628639 is 936826649.

946628639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 946628639 - 2⁸ = 946628383 is a prime.

It is a super-2 number, since 2×946628639² = 1792211560349984642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946628689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61757 + ... + 75545.

It is an arithmetic number, because the mean of its divisors is an integer number (87166590).

Almost surely, 2^946628639 is an apocalyptic number.

946628639 is a deficient number, since it is larger than the sum of its proper divisors (99370441).

946628639 is a wasteful number, since it uses less digits than its factorization.

946628639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13958 (or 13879 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 53.

The square root of 946628639 is about 30767.3307096992. The cubic root of 946628639 is about 981.8833140763.

It can be divided in two parts, 94662 and 8639, that added together give a palindrome (103301).

The spelling of 946628639 in words is "nine hundred forty-six million, six hundred twenty-eight thousand, six hundred thirty-nine".