61044979 has 2 divisors, whose sum is σ = 61044980. Its totient is φ = 61044978.

The previous prime is 61044961. The next prime is 61044989. The reversal of 61044979 is 97944016.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61044979 is a prime.

It is a super-2 number, since 2×61044979² = 7452978922220882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61044989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30522489 + 30522490.

It is an arithmetic number, because the mean of its divisors is an integer number (30522490).

Almost surely, 2^61044979 is an apocalyptic number.

61044979 is a deficient number, since it is larger than the sum of its proper divisors (1).

61044979 is an equidigital number, since it uses as much as digits as its factorization.

61044979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 61044979 is about 7813.1286307087. The cubic root of 61044979 is about 393.7464484772.

The spelling of 61044979 in words is "sixty-one million, forty-four thousand, nine hundred seventy-nine".