61712330 has 8 divisors (see below), whose sum is σ = 111082212. Its totient is φ = 24684928.

The previous prime is 61712327. The next prime is 61712359. The reversal of 61712330 is 3321716.

61712330 = T₂₈₆₁ + T₂₈₆₂ + ... + T₂₈₇₅.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61105489 + 606841 = 7817^2 + 779^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 61712296 and 61712305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3085607 + ... + 3085626.

Almost surely, 2^61712330 is an apocalyptic number.

61712330 is a deficient number, since it is larger than the sum of its proper divisors (49369882).

61712330 is a wasteful number, since it uses less digits than its factorization.

61712330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171240.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 61712330 is about 7855.7195723880. The cubic root of 61712330 is about 395.1760791646.

The spelling of 61712330 in words is "sixty-one million, seven hundred twelve thousand, three hundred thirty".