10631399 has 4 divisors (see below), whose sum is σ = 10645320. Its totient is φ = 10617480.

The previous prime is 10631377. The next prime is 10631471. The reversal of 10631399 is 99313601.

10631399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99313601 = 599 ⋅165799.

It is a cyclic number.

It is not a de Polignac number, because 10631399 - 2⁸ = 10631143 is a prime.

It is a super-2 number, since 2×10631399² = 226053289394402, 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 (10636399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5744 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (2661330).

Almost surely, 2^10631399 is an apocalyptic number.

10631399 is a deficient number, since it is larger than the sum of its proper divisors (13921).

10631399 is an equidigital number, since it uses as much as digits as its factorization.

10631399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 10631399 is about 3260.5826166500. The cubic root of 10631399 is about 219.8856085753.

The spelling of 10631399 in words is "ten million, six hundred thirty-one thousand, three hundred ninety-nine".