61738992 has 120 divisors (see below), whose sum is σ = 206129664. Its totient is φ = 16866432.

The previous prime is 61738979. The next prime is 61739003. The reversal of 61738992 is 29983716.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21853 + ... + 24515.

Almost surely, 2^61738992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61738992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103064832).

61738992 is an abundant number, since it is smaller than the sum of its proper divisors (144390672).

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

61738992 is a wasteful number, since it uses less digits than its factorization.

61738992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707 (or 2698 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 61738992 is about 7857.4163692654. The cubic root of 61738992 is about 395.2329811788.

The spelling of 61738992 in words is "sixty-one million, seven hundred thirty-eight thousand, nine hundred ninety-two".