987634597 has 2 divisors, whose sum is σ = 987634598. Its totient is φ = 987634596.

The previous prime is 987634541. The next prime is 987634603. The reversal of 987634597 is 795436789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 880843041 + 106791556 = 29679^2 + 10334^2 .

It is a cyclic number.

It is not a de Polignac number, because 987634597 - 2¹⁵ = 987601829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987634997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493817298 + 493817299.

It is an arithmetic number, because the mean of its divisors is an integer number (493817299).

Almost surely, 2^987634597 is an apocalyptic number.

It is an amenable number.

987634597 is a deficient number, since it is larger than the sum of its proper divisors (1).

987634597 is an equidigital number, since it uses as much as digits as its factorization.

987634597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 58.

The square root of 987634597 is about 31426.6542444467. The cubic root of 987634597 is about 995.8610920751.

The spelling of 987634597 in words is "nine hundred eighty-seven million, six hundred thirty-four thousand, five hundred ninety-seven".