387887761 has 16 divisors (see below), whose sum is σ = 408167424. Its totient is φ = 368207424.

The previous prime is 387887749. The next prime is 387887777. The reversal of 387887761 is 167788783.

It is not a de Polignac number, because 387887761 - 2¹⁵ = 387854993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387887711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436860 + ... + 437746.

It is an arithmetic number, because the mean of its divisors is an integer number (25510464).

Almost surely, 2^387887761 is an apocalyptic number.

It is an amenable number.

387887761 is a deficient number, since it is larger than the sum of its proper divisors (20279663).

387887761 is a wasteful number, since it uses less digits than its factorization.

387887761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200.

The product of its digits is 3161088, while the sum is 55.

The square root of 387887761 is about 19694.8663615674. The cubic root of 387887761 is about 729.2929671498.

The spelling of 387887761 in words is "three hundred eighty-seven million, eight hundred eighty-seven thousand, seven hundred sixty-one".