61304365 has 8 divisors (see below), whose sum is σ = 73828728. Its totient is φ = 48867840.

The previous prime is 61304359. The next prime is 61304371. The reversal of 61304365 is 56340316.

It is an interprime number because it is at equal distance from previous prime (61304359) and next prime (61304371).

It can be written as a sum of positive squares in 4 ways, for example, as 23629321 + 37675044 = 4861^2 + 6138^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61304365 - 2⁵ = 61304333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20412 + ... + 23221.

It is an arithmetic number, because the mean of its divisors is an integer number (9228591).

Almost surely, 2^61304365 is an apocalyptic number.

It is an amenable number.

61304365 is a deficient number, since it is larger than the sum of its proper divisors (12524363).

61304365 is a wasteful number, since it uses less digits than its factorization.

61304365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43919.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 61304365 is about 7829.7104033291. The cubic root of 61304365 is about 394.3033493165.

The spelling of 61304365 in words is "sixty-one million, three hundred four thousand, three hundred sixty-five".