75663474 has 8 divisors (see below), whose sum is σ = 151326960. Its totient is φ = 25221156.

The previous prime is 75663473. The next prime is 75663499. The reversal of 75663474 is 47436657.

It is a happy number.

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

75663474 is an admirable number.

It is a super-2 number, since 2×75663474² = 11449922595497352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75663473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6305284 + ... + 6305295.

It is an arithmetic number, because the mean of its divisors is an integer number (18915870).

Almost surely, 2^75663474 is an apocalyptic number.

75663474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

75663474 is a wasteful number, since it uses less digits than its factorization.

75663474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12610584.

The product of its digits is 423360, while the sum is 42.

The square root of 75663474 is about 8698.4753836520. The cubic root of 75663474 is about 422.9562295079.

The spelling of 75663474 in words is "seventy-five million, six hundred sixty-three thousand, four hundred seventy-four".