26799489 has 6 divisors (see below), whose sum is σ = 38710386. Its totient is φ = 17866320.

The previous prime is 26799457. The next prime is 26799499. The reversal of 26799489 is 98499762.

It can be written as a sum of positive squares in only one way, i.e., 26625600 + 173889 = 5160^2 + 417^2 .

It is not a de Polignac number, because 26799489 - 2⁵ = 26799457 is a prime.

It is a super-2 number, since 2×26799489² = 1436425221322242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26799499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1488852 + ... + 1488869.

It is an arithmetic number, because the mean of its divisors is an integer number (6451731).

Almost surely, 2^26799489 is an apocalyptic number.

It is an amenable number.

26799489 is a deficient number, since it is larger than the sum of its proper divisors (11910897).

26799489 is a wasteful number, since it uses less digits than its factorization.

26799489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977727 (or 2977724 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 26799489 is about 5176.8222878519. The cubic root of 26799489 is about 299.2555206968.

The spelling of 26799489 in words is "twenty-six million, seven hundred ninety-nine thousand, four hundred eighty-nine".