71672304 has 40 divisors (see below), whose sum is σ = 201987072. Its totient is φ = 21718720.

The previous prime is 71672281. The next prime is 71672317. The reversal of 71672304 is 40327617.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67344 + ... + 68399.

Almost surely, 2^71672304 is an apocalyptic number.

It is an amenable number.

71672304 is an abundant number, since it is smaller than the sum of its proper divisors (130314768).

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

71672304 is a wasteful number, since it uses less digits than its factorization.

71672304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135765 (or 135759 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 71672304 is about 8465.9496809277. The cubic root of 71672304 is about 415.3846610109.

The spelling of 71672304 in words is "seventy-one million, six hundred seventy-two thousand, three hundred four".