397061723 has 4 divisors (see below), whose sum is σ = 397110648. Its totient is φ = 397012800.

The previous prime is 397061683. The next prime is 397061737. The reversal of 397061723 is 327160793.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397061723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397061923) 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, 9053 + ... + 29598.

It is an arithmetic number, because the mean of its divisors is an integer number (99277662).

Almost surely, 2^397061723 is an apocalyptic number.

397061723 is a deficient number, since it is larger than the sum of its proper divisors (48925).

397061723 is a wasteful number, since it uses less digits than its factorization.

397061723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48924.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 397061723 is about 19926.4076792582. The cubic root of 397061723 is about 734.9977466110.

The spelling of 397061723 in words is "three hundred ninety-seven million, sixty-one thousand, seven hundred twenty-three".