609820431 has 16 divisors (see below), whose sum is σ = 887427840. Its totient is φ = 369414720.

The previous prime is 609820427. The next prime is 609820451. The reversal of 609820431 is 134028906.

609820431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 609820431 - 2² = 609820427 is a prime.

It is a super-2 number, since 2×609820431² = 743761916130051522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 609820392 and 609820401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609820411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121926 + ... + 126828.

It is an arithmetic number, because the mean of its divisors is an integer number (55464240).

Almost surely, 2^609820431 is an apocalyptic number.

609820431 is a deficient number, since it is larger than the sum of its proper divisors (277607409).

609820431 is a wasteful number, since it uses less digits than its factorization.

609820431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8686.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 609820431 is about 24694.5425347383. The cubic root of 609820431 is about 848.0093814785.

The spelling of 609820431 in words is "six hundred nine million, eight hundred twenty thousand, four hundred thirty-one".