8908642 has 4 divisors (see below), whose sum is σ = 13362966. Its totient is φ = 4454320.

The previous prime is 8908637. The next prime is 8908667. The reversal of 8908642 is 2468098.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2468098 = 2 ⋅1234049.

It can be written as a sum of positive squares in only one way, i.e., 6255001 + 2653641 = 2501^2 + 1629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2227159 + ... + 2227162.

Almost surely, 2^8908642 is an apocalyptic number.

8908642 is a deficient number, since it is larger than the sum of its proper divisors (4454324).

8908642 is a wasteful number, since it uses less digits than its factorization.

8908642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454323.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 8908642 is about 2984.7348290929. The cubic root of 8908642 is about 207.3021639805.

The spelling of 8908642 in words is "eight million, nine hundred eight thousand, six hundred forty-two".