75690679 has 4 divisors (see below), whose sum is σ = 75763080. Its totient is φ = 75618280.

The previous prime is 75690619. The next prime is 75690689. The reversal of 75690679 is 97609657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97609657 = 5623 ⋅17359.

It is a cyclic number.

It is not a de Polignac number, because 75690679 - 2¹⁹ = 75166391 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 (75690619) 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, 34609 + ... + 36730.

It is an arithmetic number, because the mean of its divisors is an integer number (18940770).

Almost surely, 2^75690679 is an apocalyptic number.

75690679 is a deficient number, since it is larger than the sum of its proper divisors (72401).

75690679 is a wasteful number, since it uses less digits than its factorization.

75690679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72400.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 75690679 is about 8700.0390229010. The cubic root of 75690679 is about 423.0069151066.

The spelling of 75690679 in words is "seventy-five million, six hundred ninety thousand, six hundred seventy-nine".