61928620 has 48 divisors (see below), whose sum is σ = 148303008. Its totient is φ = 21519360.

The previous prime is 61928617. The next prime is 61928623. The reversal of 61928620 is 2682916.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61928617) and next prime (61928623).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (61928623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2586 + ... + 11425.

It is an arithmetic number, because the mean of its divisors is an integer number (3089646).

Almost surely, 2^61928620 is an apocalyptic number.

It is an amenable number.

61928620 is an abundant number, since it is smaller than the sum of its proper divisors (86374388).

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

61928620 is a wasteful number, since it uses less digits than its factorization.

61928620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14050 (or 14048 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 61928620 is about 7869.4739341331. The cubic root of 61928620 is about 395.6372132309.

The spelling of 61928620 in words is "sixty-one million, nine hundred twenty-eight thousand, six hundred twenty".