75696739 has 4 divisors (see below), whose sum is σ = 75868056. Its totient is φ = 75525424.

The previous prime is 75696713. The next prime is 75696781. The reversal of 75696739 is 93769657.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75696739 - 2⁵ = 75696707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75696799) 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, 84994 + ... + 85879.

It is an arithmetic number, because the mean of its divisors is an integer number (18967014).

Almost surely, 2^75696739 is an apocalyptic number.

75696739 is a deficient number, since it is larger than the sum of its proper divisors (171317).

75696739 is a wasteful number, since it uses less digits than its factorization.

75696739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171316.

The product of its digits is 2143260, while the sum is 52.

The square root of 75696739 is about 8700.3872902302. The cubic root of 75696739 is about 423.0182038303.

The spelling of 75696739 in words is "seventy-five million, six hundred ninety-six thousand, seven hundred thirty-nine".