8921542 has 16 divisors (see below), whose sum is σ = 15333120. Its totient is φ = 3813768.

The previous prime is 8921467. The next prime is 8921569. The reversal of 8921542 is 2451298.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8743 + ... + 9709.

It is an arithmetic number, because the mean of its divisors is an integer number (958320).

Almost surely, 2^8921542 is an apocalyptic number.

8921542 is a deficient number, since it is larger than the sum of its proper divisors (6411578).

8921542 is a wasteful number, since it uses less digits than its factorization.

8921542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635.

The product of its digits is 5760, while the sum is 31.

The square root of 8921542 is about 2986.8950433519. The cubic root of 8921542 is about 207.4021757885.

The spelling of 8921542 in words is "eight million, nine hundred twenty-one thousand, five hundred forty-two".