387255631 has 8 divisors (see below), whose sum is σ = 468612000. Its totient is φ = 312407808.

The previous prime is 387255629. The next prime is 387255637. The reversal of 387255631 is 136552783.

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

It is a cyclic number.

It is not a de Polignac number, because 387255631 - 2¹ = 387255629 is a prime.

It is a super-2 number, since 2×387255631² = 299933847482416322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387255637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1627006 + ... + 1627243.

It is an arithmetic number, because the mean of its divisors is an integer number (58576500).

Almost surely, 2^387255631 is an apocalyptic number.

387255631 is a deficient number, since it is larger than the sum of its proper divisors (81356369).

387255631 is a wasteful number, since it uses less digits than its factorization.

387255631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254273.

The product of its digits is 151200, while the sum is 40.

The square root of 387255631 is about 19678.8117273376. The cubic root of 387255631 is about 728.8965821923.

The spelling of 387255631 in words is "three hundred eighty-seven million, two hundred fifty-five thousand, six hundred thirty-one".