8742470 has 64 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 2914560.

The previous prime is 8742469. The next prime is 8742493. The reversal of 8742470 is 742478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98186 + ... + 98274.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

Almost surely, 2^8742470 is an apocalyptic number.

8742470 is an abundant number, since it is smaller than the sum of its proper divisors (9919930).

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

8742470 is a wasteful number, since it uses less digits than its factorization.

8742470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 8742470 is about 2956.7668152900. The cubic root of 8742470 is about 206.0051370196.

The spelling of 8742470 in words is "eight million, seven hundred forty-two thousand, four hundred seventy".