61741992 has 32 divisors (see below), whose sum is σ = 166229280. Its totient is φ = 18997440.

The previous prime is 61741991. The next prime is 61742029. The reversal of 61741992 is 29914716.

It is a super-2 number, since 2×61741992² = 7624147152256128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 61741992.

It is not an unprimeable number, because it can be changed into a prime (61741991) 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, 98634 + ... + 99257.

It is an arithmetic number, because the mean of its divisors is an integer number (5194665).

Almost surely, 2^61741992 is an apocalyptic number.

It is an amenable number.

61741992 is an abundant number, since it is smaller than the sum of its proper divisors (104487288).

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

61741992 is a wasteful number, since it uses less digits than its factorization.

61741992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197913 (or 197909 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 61741992 is about 7857.6072693919. The cubic root of 61741992 is about 395.2393827505.

The spelling of 61741992 in words is "sixty-one million, seven hundred forty-one thousand, nine hundred ninety-two".