75720470 has 16 divisors (see below), whose sum is σ = 155767968. Its totient is φ = 25961280.

The previous prime is 75720457. The next prime is 75720487. The reversal of 75720470 is 7402757.

It is a happy 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, 540791 + ... + 540930.

It is an arithmetic number, because the mean of its divisors is an integer number (9735498).

Almost surely, 2^75720470 is an apocalyptic number.

75720470 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75720470 is an abundant number, since it is smaller than the sum of its proper divisors (80047498).

75720470 is a wasteful number, since it uses less digits than its factorization.

75720470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081735.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 75720470 is about 8701.7509732237. The cubic root of 75720470 is about 423.0624047487.

The spelling of 75720470 in words is "seventy-five million, seven hundred twenty thousand, four hundred seventy".