10642879 has 4 divisors (see below), whose sum is σ = 11461576. Its totient is φ = 9824184.

The previous prime is 10642861. The next prime is 10642927. The reversal of 10642879 is 97824601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97824601 = 7 ⋅13974943.

It is a cyclic number.

It is not a de Polignac number, because 10642879 - 2⁹ = 10642367 is a prime.

It is a super-2 number, since 2×10642879² = 226541746817282, 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 (10645879) 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, 409329 + ... + 409354.

It is an arithmetic number, because the mean of its divisors is an integer number (2865394).

Almost surely, 2^10642879 is an apocalyptic number.

10642879 is a deficient number, since it is larger than the sum of its proper divisors (818697).

10642879 is an equidigital number, since it uses as much as digits as its factorization.

10642879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818696.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 10642879 is about 3262.3425632511. The cubic root of 10642879 is about 219.9647257495.

The spelling of 10642879 in words is "ten million, six hundred forty-two thousand, eight hundred seventy-nine".