87738263 has 4 divisors (see below), whose sum is σ = 87917448. Its totient is φ = 87559080.

The previous prime is 87738227. The next prime is 87738281. The reversal of 87738263 is 36283778.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36283778 = 2 ⋅18141889.

It is a cyclic number.

It is not a de Polignac number, because 87738263 - 2⁶ = 87738199 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 (87738223) 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, 88856 + ... + 89837.

It is an arithmetic number, because the mean of its divisors is an integer number (21979362).

Almost surely, 2^87738263 is an apocalyptic number.

87738263 is a deficient number, since it is larger than the sum of its proper divisors (179185).

87738263 is a wasteful number, since it uses less digits than its factorization.

87738263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179184.

The product of its digits is 338688, while the sum is 44.

The square root of 87738263 is about 9366.8705019339. The cubic root of 87738263 is about 444.3545969467.

The spelling of 87738263 in words is "eighty-seven million, seven hundred thirty-eight thousand, two hundred sixty-three".