395025893 has 4 divisors (see below), whose sum is σ = 395197548. Its totient is φ = 394854240.

The previous prime is 395025887. The next prime is 395025959. The reversal of 395025893 is 398520593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 398520593 = 31 ⋅12855503.

It can be written as a sum of positive squares in 2 ways, for example, as 296976289 + 98049604 = 17233^2 + 9902^2 .

It is a cyclic number.

It is not a de Polignac number, because 395025893 - 2¹⁴ = 395009509 is a prime.

It is a super-2 number, since 2×395025893² = 312090912280894898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395025853) 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, 82328 + ... + 86993.

It is an arithmetic number, because the mean of its divisors is an integer number (98799387).

Almost surely, 2^395025893 is an apocalyptic number.

It is an amenable number.

395025893 is a deficient number, since it is larger than the sum of its proper divisors (171655).

395025893 is a wasteful number, since it uses less digits than its factorization.

395025893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171654.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 395025893 is about 19875.2583127868. The cubic root of 395025893 is about 733.7394240945.

The spelling of 395025893 in words is "three hundred ninety-five million, twenty-five thousand, eight hundred ninety-three".