387632534 has 4 divisors (see below), whose sum is σ = 581448804. Its totient is φ = 193816266.

The previous prime is 387632533. The next prime is 387632543. The reversal of 387632534 is 435236783.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×387632534² = 300517962830522312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 387632491 and 387632500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387632533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96908132 + ... + 96908135.

It is an arithmetic number, because the mean of its divisors is an integer number (145362201).

Almost surely, 2^387632534 is an apocalyptic number.

387632534 is a deficient number, since it is larger than the sum of its proper divisors (193816270).

387632534 is a wasteful number, since it uses less digits than its factorization.

387632534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193816269.

The product of its digits is 362880, while the sum is 41.

The square root of 387632534 is about 19688.3857642012. The cubic root of 387632534 is about 729.1329757683.

The spelling of 387632534 in words is "three hundred eighty-seven million, six hundred thirty-two thousand, five hundred thirty-four".