74947470 has 32 divisors (see below), whose sum is σ = 193711392. Its totient is φ = 18448512.

The previous prime is 74947451. The next prime is 74947493. The reversal of 74947470 is 7474947.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95697 + ... + 96476.

It is an arithmetic number, because the mean of its divisors is an integer number (6053481).

Almost surely, 2^74947470 is an apocalyptic number.

74947470 is an abundant number, since it is smaller than the sum of its proper divisors (118763922).

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

74947470 is a wasteful number, since it uses less digits than its factorization.

74947470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192196.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 74947470 is about 8657.2206856473. The cubic root of 74947470 is about 421.6178529491.

The spelling of 74947470 in words is "seventy-four million, nine hundred forty-seven thousand, four hundred seventy".