397727043 has 32 divisors (see below), whose sum is σ = 614744064. Its totient is φ = 224042112.

The previous prime is 397727003. The next prime is 397727051. The reversal of 397727043 is 340727793.

It is not a de Polignac number, because 397727043 - 2⁹ = 397726531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 397726986 and 397727004.

It is not an unprimeable number, because it can be changed into a prime (397727003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 525021 + ... + 525777.

It is an arithmetic number, because the mean of its divisors is an integer number (19210752).

Almost surely, 2^397727043 is an apocalyptic number.

397727043 is a deficient number, since it is larger than the sum of its proper divisors (217017021).

397727043 is a wasteful number, since it uses less digits than its factorization.

397727043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 222264, while the sum is 42.

The square root of 397727043 is about 19943.0951208683. The cubic root of 397727043 is about 735.4080403575.

The spelling of 397727043 in words is "three hundred ninety-seven million, seven hundred twenty-seven thousand, forty-three".