6157979 has 2 divisors, whose sum is σ = 6157980. Its totient is φ = 6157978.

The previous prime is 6157973. The next prime is 6157993. The reversal of 6157979 is 9797516.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6157979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6157973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078989 + 3078990.

It is an arithmetic number, because the mean of its divisors is an integer number (3078990).

Almost surely, 2^6157979 is an apocalyptic number.

6157979 is a deficient number, since it is larger than the sum of its proper divisors (1).

6157979 is an equidigital number, since it uses as much as digits as its factorization.

6157979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 44.

The square root of 6157979 is about 2481.5275537459. The cubic root of 6157979 is about 183.2930795002.

The spelling of 6157979 in words is "six million, one hundred fifty-seven thousand, nine hundred seventy-nine".