75490802 has 4 divisors (see below), whose sum is σ = 113236206. Its totient is φ = 37745400.

The previous prime is 75490787. The next prime is 75490813. The reversal of 75490802 is 20809457.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20809457 = 23 ⋅904759.

It can be written as a sum of positive squares in only one way, i.e., 46771921 + 28718881 = 6839^2 + 5359^2 .

It is a super-2 number, since 2×75490802² = 11397722373206408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18872699 + ... + 18872702.

Almost surely, 2^75490802 is an apocalyptic number.

75490802 is a deficient number, since it is larger than the sum of its proper divisors (37745404).

75490802 is a wasteful number, since it uses less digits than its factorization.

75490802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37745403.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 75490802 is about 8688.5442969464. The cubic root of 75490802 is about 422.6342409233.

The spelling of 75490802 in words is "seventy-five million, four hundred ninety thousand, eight hundred two".