75787397 has 8 divisors (see below), whose sum is σ = 86776896. Its totient is φ = 64838592.

The previous prime is 75787381. The next prime is 75787417. The reversal of 75787397 is 79378757.

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

It is not a de Polignac number, because 75787397 - 2⁴ = 75787381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75787357) 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, 6068 + ... + 13725.

It is an arithmetic number, because the mean of its divisors is an integer number (10847112).

Almost surely, 2^75787397 is an apocalyptic number.

It is an amenable number.

75787397 is a deficient number, since it is larger than the sum of its proper divisors (10989499).

75787397 is a wasteful number, since it uses less digits than its factorization.

75787397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20347.

The product of its digits is 2593080, while the sum is 53.

The square root of 75787397 is about 8705.5957291848. The cubic root of 75787397 is about 423.1870120031.

The spelling of 75787397 in words is "seventy-five million, seven hundred eighty-seven thousand, three hundred ninety-seven".