75772907 has 8 divisors (see below), whose sum is σ = 87180000. Its totient is φ = 64511424.

The previous prime is 75772903. The next prime is 75772937. The reversal of 75772907 is 70927757.

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 75772907 - 2² = 75772903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75772903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35282 + ... + 37367.

It is an arithmetic number, because the mean of its divisors is an integer number (10897500).

Almost surely, 2^75772907 is an apocalyptic number.

75772907 is a deficient number, since it is larger than the sum of its proper divisors (11407093).

75772907 is a wasteful number, since it uses less digits than its factorization.

75772907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72805.

The product of its (nonzero) digits is 216090, while the sum is 44.

The square root of 75772907 is about 8704.7634660570. The cubic root of 75772907 is about 423.1600401895.

The spelling of 75772907 in words is "seventy-five million, seven hundred seventy-two thousand, nine hundred seven".