26029979 has 2 divisors, whose sum is σ = 26029980. Its totient is φ = 26029978.

The previous prime is 26029961. The next prime is 26029999. The reversal of 26029979 is 97992062.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26029979 is a prime.

It is not a weakly prime, because it can be changed into another prime (26029909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13014989 + 13014990.

It is an arithmetic number, because the mean of its divisors is an integer number (13014990).

Almost surely, 2^26029979 is an apocalyptic number.

26029979 is a deficient number, since it is larger than the sum of its proper divisors (1).

26029979 is an equidigital number, since it uses as much as digits as its factorization.

26029979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 26029979 is about 5101.9583494968. The cubic root of 26029979 is about 296.3634255031.

The spelling of 26029979 in words is "twenty-six million, twenty-nine thousand, nine hundred seventy-nine".