61906365 has 24 divisors (see below), whose sum is σ = 110207448. Its totient is φ = 32123520.

The previous prime is 61906357. The next prime is 61906421. The reversal of 61906365 is 56360916.

61906365 is a `hidden beast` number, since 6 + 19 + 0 + 636 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11737476 + 50168889 = 3426^2 + 7083^2 .

It is not a de Polignac number, because 61906365 - 2³ = 61906357 is a prime.

It is a congruent number.

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, 16926 + ... + 20255.

It is an arithmetic number, because the mean of its divisors is an integer number (4591977).

Almost surely, 2^61906365 is an apocalyptic number.

It is an amenable number.

61906365 is a deficient number, since it is larger than the sum of its proper divisors (48301083).

61906365 is a wasteful number, since it uses less digits than its factorization.

61906365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37229 (or 37226 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 61906365 is about 7868.0597989593. The cubic root of 61906365 is about 395.5898147845.

The spelling of 61906365 in words is "sixty-one million, nine hundred six thousand, three hundred sixty-five".