61230979 has 2 divisors, whose sum is σ = 61230980. Its totient is φ = 61230978.

The previous prime is 61230941. The next prime is 61231019. The reversal of 61230979 is 97903216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61230979 - 2⁹ = 61230467 is a prime.

It is not a weakly prime, because it can be changed into another prime (61230479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30615489 + 30615490.

It is an arithmetic number, because the mean of its divisors is an integer number (30615490).

Almost surely, 2^61230979 is an apocalyptic number.

61230979 is a deficient number, since it is larger than the sum of its proper divisors (1).

61230979 is an equidigital number, since it uses as much as digits as its factorization.

61230979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 61230979 is about 7825.0226197756. The cubic root of 61230979 is about 394.1459494336.

The spelling of 61230979 in words is "sixty-one million, two hundred thirty thousand, nine hundred seventy-nine".