309674 has 8 divisors (see below), whose sum is σ = 471648. Its totient is φ = 152460.

The previous prime is 309671. The next prime is 309677. The reversal of 309674 is 476903.

309674 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (309671) and next prime (309677).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 309674.

It is not an unprimeable number, because it can be changed into a prime (309671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022 + ... + 1289.

It is an arithmetic number, because the mean of its divisors is an integer number (58956).

2³⁰⁹⁶⁷⁴ is an apocalyptic number.

309674 is a deficient number, since it is larger than the sum of its proper divisors (161974).

309674 is a wasteful number, since it uses less digits than its factorization.

309674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 309674 is about 556.4836026335. The cubic root of 309674 is about 67.6552621654.

The spelling of 309674 in words is "three hundred nine thousand, six hundred seventy-four".