61937972 has 12 divisors (see below), whose sum is σ = 108490116. Its totient is φ = 30940800.

The previous prime is 61937971. The next prime is 61937977. The reversal of 61937972 is 27973916.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12432676 + 49505296 = 3526^2 + 7036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61937971) 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, 1643 + ... + 11250.

It is an arithmetic number, because the mean of its divisors is an integer number (9040843).

Almost surely, 2^61937972 is an apocalyptic number.

It is an amenable number.

61937972 is a deficient number, since it is larger than the sum of its proper divisors (46552144).

61937972 is a wasteful number, since it uses less digits than its factorization.

61937972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14098 (or 14096 counting only the distinct ones).

The product of its digits is 142884, while the sum is 44.

The square root of 61937972 is about 7870.0681064397. The cubic root of 61937972 is about 395.6571276258.

The spelling of 61937972 in words is "sixty-one million, nine hundred thirty-seven thousand, nine hundred seventy-two".