75472090 has 8 divisors (see below), whose sum is σ = 135849780. Its totient is φ = 30188832.

The previous prime is 75472087. The next prime is 75472091. The reversal of 75472090 is 9027457.

It can be written as a sum of positive squares in 2 ways, for example, as 73564929 + 1907161 = 8577^2 + 1381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (75472091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3773595 + ... + 3773614.

Almost surely, 2^75472090 is an apocalyptic number.

75472090 is a deficient number, since it is larger than the sum of its proper divisors (60377690).

75472090 is a wasteful number, since it uses less digits than its factorization.

75472090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7547216.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 75472090 is about 8687.4674100108. The cubic root of 75472090 is about 422.5993184108.

The spelling of 75472090 in words is "seventy-five million, four hundred seventy-two thousand, ninety".