61030992 has 40 divisors (see below), whose sum is σ = 171997920. Its totient is φ = 18494080.

The previous prime is 61030973. The next prime is 61031017. The reversal of 61030992 is 29903016.

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, 57267 + ... + 58322.

It is an arithmetic number, because the mean of its divisors is an integer number (4299948).

Almost surely, 2^61030992 is an apocalyptic number.

It is an amenable number.

61030992 is an abundant number, since it is smaller than the sum of its proper divisors (110966928).

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

61030992 is a wasteful number, since it uses less digits than its factorization.

61030992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115611 (or 115605 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 61030992 is about 7812.2334834540. The cubic root of 61030992 is about 393.7163736464.

The spelling of 61030992 in words is "sixty-one million, thirty thousand, nine hundred ninety-two".