75277690 has 8 divisors (see below), whose sum is σ = 135499860. Its totient is φ = 30111072.

The previous prime is 75277637. The next prime is 75277729. The reversal of 75277690 is 9677257.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75116889 + 160801 = 8667^2 + 401^2 .

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

It is a super-2 number, since 2×75277690² = 11333461223472200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3763875 + ... + 3763894.

Almost surely, 2^75277690 is an apocalyptic number.

75277690 is a deficient number, since it is larger than the sum of its proper divisors (60222170).

75277690 is a wasteful number, since it uses less digits than its factorization.

75277690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7527776.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 75277690 is about 8676.2716647187. The cubic root of 75277690 is about 422.2361645391.

The spelling of 75277690 in words is "seventy-five million, two hundred seventy-seven thousand, six hundred ninety".