61984037 has 4 divisors (see below), whose sum is σ = 62113920. Its totient is φ = 61854156.

The previous prime is 61984009. The next prime is 61984051. The reversal of 61984037 is 73048916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61984037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61984537) 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, 64223 + ... + 65180.

It is an arithmetic number, because the mean of its divisors is an integer number (15528480).

Almost surely, 2^61984037 is an apocalyptic number.

It is an amenable number.

61984037 is a deficient number, since it is larger than the sum of its proper divisors (129883).

61984037 is a wasteful number, since it uses less digits than its factorization.

61984037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129882.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 61984037 is about 7872.9941572441. The cubic root of 61984037 is about 395.7551904052.

The spelling of 61984037 in words is "sixty-one million, nine hundred eighty-four thousand, thirty-seven".