61620841 has 8 divisors (see below), whose sum is σ = 65024640. Its totient is φ = 58277472.

The previous prime is 61620817. The next prime is 61620859. The reversal of 61620841 is 14802616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61620841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61620241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13005 + ... + 17098.

It is an arithmetic number, because the mean of its divisors is an integer number (8128080).

Almost surely, 2^61620841 is an apocalyptic number.

It is an amenable number.

61620841 is a deficient number, since it is larger than the sum of its proper divisors (3403799).

61620841 is a wasteful number, since it uses less digits than its factorization.

61620841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30215.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 61620841 is about 7849.8943304990. The cubic root of 61620841 is about 394.9806987311.

The spelling of 61620841 in words is "sixty-one million, six hundred twenty thousand, eight hundred forty-one".