87263442 has 24 divisors (see below), whose sum is σ = 216081216. Its totient is φ = 24932376.

The previous prime is 87263437. The next prime is 87263453. The reversal of 87263442 is 24436278.

It is a super-2 number, since 2×87263442² = 15229816619374728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87263397 and 87263406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346158 + ... + 346409.

It is an arithmetic number, because the mean of its divisors is an integer number (9003384).

Almost surely, 2^87263442 is an apocalyptic number.

87263442 is an abundant number, since it is smaller than the sum of its proper divisors (128817774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87263442 is a wasteful number, since it uses less digits than its factorization.

87263442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692582 (or 692579 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 87263442 is about 9341.4903521869. The cubic root of 87263442 is about 443.5515620850.

The spelling of 87263442 in words is "eighty-seven million, two hundred sixty-three thousand, four hundred forty-two".