75670723 has 4 divisors (see below), whose sum is σ = 80121960. Its totient is φ = 71219488.

The previous prime is 75670687. The next prime is 75670729. The reversal of 75670723 is 32707657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32707657 = 151 ⋅216607.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75670723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75670729) 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, 2225593 + ... + 2225626.

It is an arithmetic number, because the mean of its divisors is an integer number (20030490).

Almost surely, 2^75670723 is an apocalyptic number.

75670723 is a deficient number, since it is larger than the sum of its proper divisors (4451237).

75670723 is a wasteful number, since it uses less digits than its factorization.

75670723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451236.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 75670723 is about 8698.8920558885. The cubic root of 75670723 is about 422.9697362972.

The spelling of 75670723 in words is "seventy-five million, six hundred seventy thousand, seven hundred twenty-three".