370809 has 6 divisors (see below), whose sum is σ = 535626. Its totient is φ = 247200.

The previous prime is 370801. The next prime is 370813. The reversal of 370809 is 908073.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 356409 + 14400 = 597^2 + 120^2 .

It is not a de Polignac number, because 370809 - 2³ = 370801 is a prime.

370809 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 370809.

It is not an unprimeable number, because it can be changed into a prime (370801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20592 + ... + 20609.

It is an arithmetic number, because the mean of its divisors is an integer number (89271).

2³⁷⁰⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

370809 is a deficient number, since it is larger than the sum of its proper divisors (164817).

370809 is a wasteful number, since it uses less digits than its factorization.

370809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41207 (or 41204 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 370809 is about 608.9408838303. The cubic root of 370809 is about 71.8428284502.

The spelling of 370809 in words is "three hundred seventy thousand, eight hundred nine".