394079577 has 16 divisors (see below), whose sum is σ = 541709952. Its totient is φ = 254666880.

The previous prime is 394079573. The next prime is 394079591. The reversal of 394079577 is 775970493.

It is not a de Polignac number, because 394079577 - 2² = 394079573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (394079573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9108 + ... + 29514.

It is an arithmetic number, because the mean of its divisors is an integer number (33856872).

Almost surely, 2^394079577 is an apocalyptic number.

It is an amenable number.

394079577 is a deficient number, since it is larger than the sum of its proper divisors (147630375).

394079577 is a wasteful number, since it uses less digits than its factorization.

394079577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20608.

The product of its (nonzero) digits is 1666980, while the sum is 51.

The square root of 394079577 is about 19851.4376557467. The cubic root of 394079577 is about 733.1530451890.

It can be divided in two parts, 39407 and 9577, that added together give a palindrome (48984).

The spelling of 394079577 in words is "three hundred ninety-four million, seventy-nine thousand, five hundred seventy-seven".