398113077 has 8 divisors (see below), whose sum is σ = 542111616. Its totient is φ = 259761632.

The previous prime is 398113057. The next prime is 398113091. The reversal of 398113077 is 770311893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 398113077 - 2¹² = 398108981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398113057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411608 + ... + 1411889.

It is an arithmetic number, because the mean of its divisors is an integer number (67763952).

Almost surely, 2^398113077 is an apocalyptic number.

It is an amenable number.

398113077 is a deficient number, since it is larger than the sum of its proper divisors (143998539).

398113077 is a wasteful number, since it uses less digits than its factorization.

398113077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823547.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 398113077 is about 19952.7711609190. The cubic root of 398113077 is about 735.6458925170.

The spelling of 398113077 in words is "three hundred ninety-eight million, one hundred thirteen thousand, seventy-seven".