87963903 has 6 divisors (see below), whose sum is σ = 127058984. Its totient is φ = 58642596.

The previous prime is 87963859. The next prime is 87963907. The reversal of 87963903 is 30936978.

It is a happy number.

87963903 is a `hidden beast` number, since 8 + 7 + 9 + 639 + 0 + 3 = 666.

It is not a de Polignac number, because 87963903 - 2¹⁶ = 87898367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87963907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4886875 + ... + 4886892.

Almost surely, 2^87963903 is an apocalyptic number.

87963903 is a deficient number, since it is larger than the sum of its proper divisors (39095081).

87963903 is a wasteful number, since it uses less digits than its factorization.

87963903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773773 (or 9773770 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 87963903 is about 9378.9073457413. The cubic root of 87963903 is about 444.7351923650.

The spelling of 87963903 in words is "eighty-seven million, nine hundred sixty-three thousand, nine hundred three".