395378973 has 24 divisors (see below), whose sum is σ = 625362816. Its totient is φ = 238723200.

The previous prime is 395378969. The next prime is 395378983. The reversal of 395378973 is 379873593.

It is a happy number.

395378973 is a `hidden beast` number, since 39 + 537 + 8 + 9 + 73 = 666.

It is not a de Polignac number, because 395378973 - 2² = 395378969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395378903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19461 + ... + 34197.

It is an arithmetic number, because the mean of its divisors is an integer number (26056784).

Almost surely, 2^395378973 is an apocalyptic number.

395378973 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

395378973 is a deficient number, since it is larger than the sum of its proper divisors (229983843).

395378973 is a wasteful number, since it uses less digits than its factorization.

395378973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15025 (or 15022 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 395378973 is about 19884.1387291479. The cubic root of 395378973 is about 733.9579680535.

The spelling of 395378973 in words is "three hundred ninety-five million, three hundred seventy-eight thousand, nine hundred seventy-three".