26870451 has 4 divisors (see below), whose sum is σ = 35827272. Its totient is φ = 17913632.

The previous prime is 26870449. The next prime is 26870471. The reversal of 26870451 is 15407862.

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 26870451 - 2¹ = 26870449 is a prime.

It is a super-2 number, since 2×26870451² = 1444042273886802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26870401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4478406 + ... + 4478411.

It is an arithmetic number, because the mean of its divisors is an integer number (8956818).

Almost surely, 2^26870451 is an apocalyptic number.

26870451 is a deficient number, since it is larger than the sum of its proper divisors (8956821).

26870451 is an equidigital number, since it uses as much as digits as its factorization.

26870451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956820.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 26870451 is about 5183.6715752447. The cubic root of 26870451 is about 299.5194194411.

The spelling of 26870451 in words is "twenty-six million, eight hundred seventy thousand, four hundred fifty-one".