987652431 has 12 divisors (see below), whose sum is σ = 1439235408. Its totient is φ = 652607424.

The previous prime is 987652429. The next prime is 987652459. The reversal of 987652431 is 134256789.

987652431 is a `hidden beast` number, since 98 + 7 + 6 + 524 + 31 = 666.

It is not a de Polignac number, because 987652431 - 2¹ = 987652429 is a prime.

It is a super-2 number, since 2×987652431² = 1950914648920419522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987652481) 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, 484555 + ... + 486588.

It is an arithmetic number, because the mean of its divisors is an integer number (119936284).

Almost surely, 2^987652431 is an apocalyptic number.

987652431 is a deficient number, since it is larger than the sum of its proper divisors (451582977).

987652431 is a wasteful number, since it uses less digits than its factorization.

987652431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971262 (or 971259 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 987652431 is about 31426.9379832016. The cubic root of 987652431 is about 995.8670862218.

The spelling of 987652431 in words is "nine hundred eighty-seven million, six hundred fifty-two thousand, four hundred thirty-one".