2978357223 has 8 divisors (see below), whose sum is σ = 3980854000. Its totient is φ = 1980715968.

The previous prime is 2978357197. The next prime is 2978357237. The reversal of 2978357223 is 3227538792.

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

It is not a de Polignac number, because 2978357223 - 2¹² = 2978353127 is a prime.

It is a super-2 number, since 2×2978357223² = 17741223495592543458, 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 (2978353223) 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, 1212448 + ... + 1214901.

It is an arithmetic number, because the mean of its divisors is an integer number (497606750).

Almost surely, 2^2978357223 is an apocalyptic number.

2978357223 is a deficient number, since it is larger than the sum of its proper divisors (1002496777).

2978357223 is a wasteful number, since it uses less digits than its factorization.

2978357223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427761.

The product of its digits is 1270080, while the sum is 48.

The square root of 2978357223 is about 54574.3275084540. The cubic root of 2978357223 is about 1438.7729424434.

The spelling of 2978357223 in words is "two billion, nine hundred seventy-eight million, three hundred fifty-seven thousand, two hundred twenty-three".