26499947 has 12 divisors (see below), whose sum is σ = 28092096. Its totient is φ = 24963120.

The previous prime is 26499937. The next prime is 26499953. The reversal of 26499947 is 74999462.

It is not a de Polignac number, because 26499947 - 2⁴ = 26499931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26499895 and 26499904.

It is not an unprimeable number, because it can be changed into a prime (26499917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208598 + ... + 208724.

It is an arithmetic number, because the mean of its divisors is an integer number (2341008).

Almost surely, 2^26499947 is an apocalyptic number.

26499947 is a deficient number, since it is larger than the sum of its proper divisors (1592149).

26499947 is an equidigital number, since it uses as much as digits as its factorization.

26499947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 211 counting only the distinct ones).

The product of its digits is 979776, while the sum is 50.

The square root of 26499947 is about 5147.8099226759. The cubic root of 26499947 is about 298.1363991293.

The spelling of 26499947 in words is "twenty-six million, four hundred ninety-nine thousand, nine hundred forty-seven".