61733913 has 8 divisors (see below), whose sum is σ = 82349376. Its totient is φ = 41137200.

The previous prime is 61733879. The next prime is 61733933. The reversal of 61733913 is 31933716.

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

It is not a de Polignac number, because 61733913 - 2⁶ = 61733849 is a prime.

It is a super-2 number, since 2×61733913² = 7622152028583138, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (61733933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7603 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (10293672).

Almost surely, 2^61733913 is an apocalyptic number.

It is an amenable number.

61733913 is a deficient number, since it is larger than the sum of its proper divisors (20615463).

61733913 is a wasteful number, since it uses less digits than its factorization.

61733913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375.

The product of its digits is 10206, while the sum is 33.

The square root of 61733913 is about 7857.0931647779. The cubic root of 61733913 is about 395.2221428453. Note that the first 3 decimals are identical.

The spelling of 61733913 in words is "sixty-one million, seven hundred thirty-three thousand, nine hundred thirteen".