397653675 has 24 divisors (see below), whose sum is σ = 659291136. Its totient is φ = 211489440.

The previous prime is 397653673. The next prime is 397653677. The reversal of 397653675 is 576356793.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (397653673) and next prime (397653677).

It is not a de Polignac number, because 397653675 - 2¹ = 397653673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397653673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20302 + ... + 34748.

It is an arithmetic number, because the mean of its divisors is an integer number (27470464).

Almost surely, 2^397653675 is an apocalyptic number.

397653675 is a deficient number, since it is larger than the sum of its proper divisors (261637461).

397653675 is a wasteful number, since it uses less digits than its factorization.

397653675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14827 (or 14822 counting only the distinct ones).

The product of its digits is 3572100, while the sum is 51.

The square root of 397653675 is about 19941.2556023937. The cubic root of 397653675 is about 735.3628177724.

The spelling of 397653675 in words is "three hundred ninety-seven million, six hundred fifty-three thousand, six hundred seventy-five".