87053381 has 4 divisors (see below), whose sum is σ = 87867072. Its totient is φ = 86239692.

The previous prime is 87053377. The next prime is 87053411. The reversal of 87053381 is 18335078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87053381 - 2² = 87053377 is a prime.

It is a super-2 number, since 2×87053381² = 15156582287062322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87053581) 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, 406685 + ... + 406898.

It is an arithmetic number, because the mean of its divisors is an integer number (21966768).

Almost surely, 2^87053381 is an apocalyptic number.

It is an amenable number.

87053381 is a deficient number, since it is larger than the sum of its proper divisors (813691).

87053381 is a wasteful number, since it uses less digits than its factorization.

87053381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813690.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 87053381 is about 9330.2401362452. The cubic root of 87053381 is about 443.1953695995.

The spelling of 87053381 in words is "eighty-seven million, fifty-three thousand, three hundred eighty-one".