1372807 has 4 divisors (see below), whose sum is σ = 1445080. Its totient is φ = 1300536.

The previous prime is 1372799. The next prime is 1372829. The reversal of 1372807 is 7082731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7082731 = 317 ⋅22343.

It is a cyclic number.

It is not a de Polignac number, because 1372807 - 2³ = 1372799 is a prime.

It is a Duffinian number.

1372807 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372867) 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 in 3 ways as a sum of consecutive naturals, for example, 36108 + ... + 36145.

It is an arithmetic number, because the mean of its divisors is an integer number (361270).

2^1372807 is an apocalyptic number.

1372807 is a deficient number, since it is larger than the sum of its proper divisors (72273).

1372807 is an equidigital number, since it uses as much as digits as its factorization.

1372807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72272.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1372807 is about 1171.6684684671. The cubic root of 1372807 is about 111.1398556372.

The spelling of 1372807 in words is "one million, three hundred seventy-two thousand, eight hundred seven".