365843947 has 12 divisors (see below), whose sum is σ = 428931840. Its totient is φ = 311106096.

The previous prime is 365843923. The next prime is 365843963. The reversal of 365843947 is 749348563.

It is not a de Polignac number, because 365843947 - 2¹¹ = 365841899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 365843947.

It is not an unprimeable number, because it can be changed into a prime (365843977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23172 + ... + 35617.

It is an arithmetic number, because the mean of its divisors is an integer number (35744320).

Almost surely, 2^365843947 is an apocalyptic number.

365843947 is a deficient number, since it is larger than the sum of its proper divisors (63087893).

365843947 is a wasteful number, since it uses less digits than its factorization.

365843947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58930 (or 58923 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 49.

The square root of 365843947 is about 19127.0475243828. The cubic root of 365843947 is about 715.2073319217.

The spelling of 365843947 in words is "three hundred sixty-five million, eight hundred forty-three thousand, nine hundred forty-seven".