61796621 has 4 divisors (see below), whose sum is σ = 61841472. Its totient is φ = 61751772.

The previous prime is 61796611. The next prime is 61796629. The reversal of 61796621 is 12669716.

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 not a de Polignac number, because 61796621 - 2¹⁸ = 61534477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61796629) 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, 20291 + ... + 23136.

It is an arithmetic number, because the mean of its divisors is an integer number (15460368).

Almost surely, 2^61796621 is an apocalyptic number.

It is an amenable number.

61796621 is a deficient number, since it is larger than the sum of its proper divisors (44851).

61796621 is a wasteful number, since it uses less digits than its factorization.

61796621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44850.

The product of its digits is 27216, while the sum is 38.

The square root of 61796621 is about 7861.0826862462. The cubic root of 61796621 is about 395.3559169851.

The spelling of 61796621 in words is "sixty-one million, seven hundred ninety-six thousand, six hundred twenty-one".