1672366979 has 2 divisors, whose sum is σ = 1672366980. Its totient is φ = 1672366978.

The previous prime is 1672366939. The next prime is 1672366981. The reversal of 1672366979 is 9796632761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1672366979 - 2²⁰ = 1671318403 is a prime.

It is a super-2 number, since 2×1672366979² = 5593622624899172882, which contains 22 as substring.

Together with 1672366981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1672366919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836183489 + 836183490.

It is an arithmetic number, because the mean of its divisors is an integer number (836183490).

Almost surely, 2^1672366979 is an apocalyptic number.

1672366979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672366979 is an equidigital number, since it uses as much as digits as its factorization.

1672366979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5143824, while the sum is 56.

The square root of 1672366979 is about 40894.5837367248. The cubic root of 1672366979 is about 1186.9812569212.

The spelling of 1672366979 in words is "one billion, six hundred seventy-two million, three hundred sixty-six thousand, nine hundred seventy-nine".