61988492 has 6 divisors (see below), whose sum is σ = 108479868. Its totient is φ = 30994244.

The previous prime is 61988489. The next prime is 61988501. The reversal of 61988492 is 29488916.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7748558 + ... + 7748565.

It is an arithmetic number, because the mean of its divisors is an integer number (18079978).

Almost surely, 2^61988492 is an apocalyptic number.

It is an amenable number.

61988492 is a deficient number, since it is larger than the sum of its proper divisors (46491376).

61988492 is a wasteful number, since it uses less digits than its factorization.

61988492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15497127 (or 15497125 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 61988492 is about 7873.2770813683. The cubic root of 61988492 is about 395.7646715944.

The spelling of 61988492 in words is "sixty-one million, nine hundred eighty-eight thousand, four hundred ninety-two".