75424661 has 8 divisors (see below), whose sum is σ = 85501920. Its totient is φ = 65958192.

The previous prime is 75424637. The next prime is 75424667. The reversal of 75424661 is 16642457.

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

It is a cyclic number.

It is not a de Polignac number, because 75424661 - 2¹⁰ = 75423637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75424667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152435 + ... + 152928.

It is an arithmetic number, because the mean of its divisors is an integer number (10687740).

Almost surely, 2^75424661 is an apocalyptic number.

It is an amenable number.

75424661 is a deficient number, since it is larger than the sum of its proper divisors (10077259).

75424661 is a wasteful number, since it uses less digits than its factorization.

75424661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305395.

The product of its digits is 40320, while the sum is 35.

The square root of 75424661 is about 8684.7372441543. The cubic root of 75424661 is about 422.5107750249.

The spelling of 75424661 in words is "seventy-five million, four hundred twenty-four thousand, six hundred sixty-one".