1372867 has 2 divisors, whose sum is σ = 1372868. Its totient is φ = 1372866.

The previous prime is 1372849. The next prime is 1372879. The reversal of 1372867 is 7682731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1372867 - 2⁷ = 1372739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1372667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686433 + 686434.

It is an arithmetic number, because the mean of its divisors is an integer number (686434).

2^1372867 is an apocalyptic number.

1372867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372867 is an equidigital number, since it uses as much as digits as its factorization.

1372867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 34.

The square root of 1372867 is about 1171.6940726999. The cubic root of 1372867 is about 111.1414747757.

The spelling of 1372867 in words is "one million, three hundred seventy-two thousand, eight hundred sixty-seven".