1377479 has 2 divisors, whose sum is σ = 1377480. Its totient is φ = 1377478.

The previous prime is 1377469. The next prime is 1377487. The reversal of 1377479 is 9747731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1377479 - 2⁸ = 1377223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688739 + 688740.

It is an arithmetic number, because the mean of its divisors is an integer number (688740).

2^1377479 is an apocalyptic number.

1377479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377479 is an equidigital number, since it uses as much as digits as its factorization.

1377479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37044, while the sum is 38.

The square root of 1377479 is about 1173.6605130957. The cubic root of 1377479 is about 111.2657916396.

The spelling of 1377479 in words is "one million, three hundred seventy-seven thousand, four hundred seventy-nine".