26630739 has 6 divisors (see below), whose sum is σ = 38466636. Its totient is φ = 17753820.

The previous prime is 26630707. The next prime is 26630759. The reversal of 26630739 is 93703662.

It is not a de Polignac number, because 26630739 - 2⁵ = 26630707 is a prime.

It is a super-2 number, since 2×26630739² = 1418392519372242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26630759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1479477 + ... + 1479494.

It is an arithmetic number, because the mean of its divisors is an integer number (6411106).

Almost surely, 2^26630739 is an apocalyptic number.

26630739 is a deficient number, since it is larger than the sum of its proper divisors (11835897).

26630739 is a wasteful number, since it uses less digits than its factorization.

26630739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958977 (or 2958974 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 26630739 is about 5160.4979410906. The cubic root of 26630739 is about 298.6260841226.

The spelling of 26630739 in words is "twenty-six million, six hundred thirty thousand, seven hundred thirty-nine".