87103631 has 4 divisors (see below), whose sum is σ = 92227392. Its totient is φ = 81979872.

The previous prime is 87103609. The next prime is 87103649. The reversal of 87103631 is 13630178.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87103631 is a prime.

It is a super-2 number, since 2×87103631² = 15174085066768322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87103594 and 87103603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87103651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2561855 + ... + 2561888.

It is an arithmetic number, because the mean of its divisors is an integer number (23056848).

Almost surely, 2^87103631 is an apocalyptic number.

87103631 is a deficient number, since it is larger than the sum of its proper divisors (5123761).

87103631 is a wasteful number, since it uses less digits than its factorization.

87103631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123760.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 87103631 is about 9332.9326044925. The cubic root of 87103631 is about 443.2806287180.

The spelling of 87103631 in words is "eighty-seven million, one hundred three thousand, six hundred thirty-one".