61692331 has 4 divisors (see below), whose sum is σ = 63197064. Its totient is φ = 60187600.

The previous prime is 61692317. The next prime is 61692343. The reversal of 61692331 is 13329616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61692331 - 2⁵ = 61692299 is a prime.

It is a super-2 number, since 2×61692331² = 7611887408427122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61692293 and 61692302.

It is not an unprimeable number, because it can be changed into a prime (61692361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752305 + ... + 752386.

It is an arithmetic number, because the mean of its divisors is an integer number (15799266).

Almost surely, 2^61692331 is an apocalyptic number.

61692331 is a deficient number, since it is larger than the sum of its proper divisors (1504733).

61692331 is a wasteful number, since it uses less digits than its factorization.

61692331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504732.

The product of its digits is 5832, while the sum is 31.

The square root of 61692331 is about 7854.4465750300. The cubic root of 61692331 is about 395.1333865601.

The spelling of 61692331 in words is "sixty-one million, six hundred ninety-two thousand, three hundred thirty-one".