26628011 has 4 divisors (see below), whose sum is σ = 27025512. Its totient is φ = 26230512.

The previous prime is 26627969. The next prime is 26628013. The reversal of 26628011 is 11082662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26628011 - 2⁶ = 26627947 is a prime.

It is a super-2 number, since 2×26628011² = 1418101939632242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26628013) 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, 198650 + ... + 198783.

It is an arithmetic number, because the mean of its divisors is an integer number (6756378).

Almost surely, 2^26628011 is an apocalyptic number.

26628011 is a deficient number, since it is larger than the sum of its proper divisors (397501).

26628011 is an equidigital number, since it uses as much as digits as its factorization.

26628011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397500.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 26628011 is about 5160.2336187425. The cubic root of 26628011 is about 298.6158868868.

The spelling of 26628011 in words is "twenty-six million, six hundred twenty-eight thousand, eleven".