26942397 has 12 divisors (see below), whose sum is σ = 36408960. Its totient is φ = 17721912.

The previous prime is 26942389. The next prime is 26942417. The reversal of 26942397 is 79324962.

It is a happy number.

It is not a de Polignac number, because 26942397 - 2³ = 26942389 is a prime.

It is a super-2 number, since 2×26942397² = 1451785512211218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26942197) 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, 18004 + ... + 19442.

It is an arithmetic number, because the mean of its divisors is an integer number (3034080).

Almost surely, 2^26942397 is an apocalyptic number.

It is an amenable number.

26942397 is a deficient number, since it is larger than the sum of its proper divisors (9466563).

26942397 is an equidigital number, since it uses as much as digits as its factorization.

26942397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1521 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 26942397 is about 5190.6066119482. The cubic root of 26942397 is about 299.7865036560.

The spelling of 26942397 in words is "twenty-six million, nine hundred forty-two thousand, three hundred ninety-seven".