397150773 has 4 divisors (see below), whose sum is σ = 529534368. Its totient is φ = 264767180.

The previous prime is 397150759. The next prime is 397150847. The reversal of 397150773 is 377051793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 397150773 - 2¹⁴ = 397134389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397157773) 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, 66191793 + ... + 66191798.

It is an arithmetic number, because the mean of its divisors is an integer number (132383592).

Almost surely, 2^397150773 is an apocalyptic number.

It is an amenable number.

397150773 is a deficient number, since it is larger than the sum of its proper divisors (132383595).

397150773 is a wasteful number, since it uses less digits than its factorization.

397150773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132383594.

The product of its (nonzero) digits is 138915, while the sum is 42.

The square root of 397150773 is about 19928.6420259886. The cubic root of 397150773 is about 735.0526890823.

The spelling of 397150773 in words is "three hundred ninety-seven million, one hundred fifty thousand, seven hundred seventy-three".