65420874 has 48 divisors (see below), whose sum is σ = 145159560. Its totient is φ = 21288960.

The previous prime is 65420869. The next prime is 65420893. The reversal of 65420874 is 47802456.

It can be written as a sum of positive squares in 4 ways, for example, as 22610025 + 42810849 = 4755^2 + 6543^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155184 + ... + 155604.

Almost surely, 2^65420874 is an apocalyptic number.

65420874 is an abundant number, since it is smaller than the sum of its proper divisors (79738686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65420874 is a wasteful number, since it uses less digits than its factorization.

65420874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 65420874 is about 8088.3171302812. The cubic root of 65420874 is about 402.9385141414.

It can be divided in two parts, 654 and 20874, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 65420874 in words is "sixty-five million, four hundred twenty thousand, eight hundred seventy-four".