1372979 has 2 divisors, whose sum is σ = 1372980. Its totient is φ = 1372978.

The previous prime is 1372963. The next prime is 1372981. The reversal of 1372979 is 9792731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1372979 - 2⁴ = 1372963 is a prime.

Together with 1372981, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 7.

It is not a weakly prime, because it can be changed into another prime (1372999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686489 + 686490.

It is an arithmetic number, because the mean of its divisors is an integer number (686490).

2^1372979 is an apocalyptic number.

1372979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372979 is an equidigital number, since it uses as much as digits as its factorization.

1372979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 38.

The square root of 1372979 is about 1171.7418657708. The cubic root of 1372979 is about 111.1444970415.

The spelling of 1372979 in words is "one million, three hundred seventy-two thousand, nine hundred seventy-nine".