61693716 has 36 divisors (see below), whose sum is σ = 164708768. Its totient is φ = 17606208.

The previous prime is 61693699. The next prime is 61693733. The reversal of 61693716 is 61739616.

It is an interprime number because it is at equal distance from previous prime (61693699) and next prime (61693733).

It is a super-2 number, since 2×61693716² = 7612229187777312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71560 + ... + 72416.

Almost surely, 2^61693716 is an apocalyptic number.

It is an amenable number.

61693716 is an abundant number, since it is smaller than the sum of its proper divisors (103015052).

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

61693716 is an equidigital number, since it uses as much as digits as its factorization.

61693716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728 (or 869 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 61693716 is about 7854.5347411543. The cubic root of 61693716 is about 395.1363434682.

The spelling of 61693716 in words is "sixty-one million, six hundred ninety-three thousand, seven hundred sixteen".