1372417 has 2 divisors, whose sum is σ = 1372418. Its totient is φ = 1372416.

The previous prime is 1372411. The next prime is 1372421. The reversal of 1372417 is 7142731.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 848241 + 524176 = 921^2 + 724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1372417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1372391 and 1372400.

It is not a weakly prime, because it can be changed into another prime (1372411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686208 + 686209.

It is an arithmetic number, because the mean of its divisors is an integer number (686209).

2^1372417 is an apocalyptic number.

It is an amenable number.

1372417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372417 is an equidigital number, since it uses as much as digits as its factorization.

1372417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 25.

The square root of 1372417 is about 1171.5020273137. The cubic root of 1372417 is about 111.1293300865.

Subtracting from 1372417 its product of digits (1176), we obtain a square (1371241 = 1171²).

The spelling of 1372417 in words is "one million, three hundred seventy-two thousand, four hundred seventeen".