380691047 has 12 divisors (see below), whose sum is σ = 443062368. Its totient is φ = 325723200.

The previous prime is 380691043. The next prime is 380691061. The reversal of 380691047 is 740196083.

It is not a de Polignac number, because 380691047 - 2² = 380691043 is a prime.

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 380691047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380691041) 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, 90479 + ... + 94592.

It is an arithmetic number, because the mean of its divisors is an integer number (36921864).

Almost surely, 2^380691047 is an apocalyptic number.

380691047 is a deficient number, since it is larger than the sum of its proper divisors (62371321).

380691047 is a wasteful number, since it uses less digits than its factorization.

380691047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185110 (or 185099 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 380691047 is about 19511.3056200758. The cubic root of 380691047 is about 724.7544452595.

The spelling of 380691047 in words is "three hundred eighty million, six hundred ninety-one thousand, forty-seven".