1372403 has 2 divisors, whose sum is σ = 1372404. Its totient is φ = 1372402.

The previous prime is 1372391. The next prime is 1372411. The reversal of 1372403 is 3042731.

It is a strong prime.

It is an emirp because it is prime and its reverse (3042731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1372403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1372493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686201 + 686202.

It is an arithmetic number, because the mean of its divisors is an integer number (686202).

2^1372403 is an apocalyptic number.

1372403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372403 is an equidigital number, since it uses as much as digits as its factorization.

1372403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 1372403 is about 1171.4960520633. The cubic root of 1372403 is about 111.1289522092.

The spelling of 1372403 in words is "one million, three hundred seventy-two thousand, four hundred three".