338977777 has 4 divisors (see below), whose sum is σ = 349912576. Its totient is φ = 328042980.

The previous prime is 338977753. The next prime is 338977783. The reversal of 338977777 is 777779833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 338977777 - 2¹¹ = 338975729 is a prime.

It is a super-2 number, since 2×338977777² = 229811866599723458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338977477) 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, 5467353 + ... + 5467414.

It is an arithmetic number, because the mean of its divisors is an integer number (87478144).

Almost surely, 2^338977777 is an apocalyptic number.

It is an amenable number.

338977777 is a deficient number, since it is larger than the sum of its proper divisors (10934799).

338977777 is a wasteful number, since it uses less digits than its factorization.

338977777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10934798.

The product of its digits is 10890936, while the sum is 58.

The square root of 338977777 is about 18411.3491357912. The cubic root of 338977777 is about 697.2530281868.

The spelling of 338977777 in words is "three hundred thirty-eight million, nine hundred seventy-seven thousand, seven hundred seventy-seven".