30772723 has 6 divisors (see below), whose sum is σ = 32477964. Its totient is φ = 29152764.

The previous prime is 30772717. The next prime is 30772757. The reversal of 30772723 is 32727703.

It is not a de Polignac number, because 30772723 - 2²¹ = 28675571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30772783) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42261 + ... + 42982.

It is an arithmetic number, because the mean of its divisors is an integer number (5412994).

Almost surely, 2^30772723 is an apocalyptic number.

30772723 is a deficient number, since it is larger than the sum of its proper divisors (1705241).

30772723 is an equidigital number, since it uses as much as digits as its factorization.

30772723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85281 (or 85262 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 30772723 is about 5547.3167387486. The cubic root of 30772723 is about 313.3684786542.

The spelling of 30772723 in words is "thirty million, seven hundred seventy-two thousand, seven hundred twenty-three".