387252775 has 144 divisors (see below), whose sum is σ = 682178560. Its totient is φ = 211507200.

The previous prime is 387252769. The next prime is 387252779. The reversal of 387252775 is 577252783.

It is not a de Polignac number, because 387252775 - 2⁷ = 387252647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387252779) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12492010 + ... + 12492040.

Almost surely, 2^387252775 is an apocalyptic number.

387252775 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

387252775 is a deficient number, since it is larger than the sum of its proper divisors (294925785).

387252775 is a wasteful number, since it uses less digits than its factorization.

387252775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 92 counting only the distinct ones).

The product of its digits is 823200, while the sum is 46.

The square root of 387252775 is about 19678.7391618467. The cubic root of 387252775 is about 728.8947903236.

The spelling of 387252775 in words is "three hundred eighty-seven million, two hundred fifty-two thousand, seven hundred seventy-five".