977222794 has 8 divisors (see below), whose sum is σ = 1466324100. Its totient is φ = 488448096.

The previous prime is 977222789. The next prime is 977222797. The reversal of 977222794 is 497222779.

It can be written as a sum of positive squares in 2 ways, for example, as 973752025 + 3470769 = 31205^2 + 1863^2 .

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

It is a super-2 number, since 2×977222794² = 1909928778226332872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (977222797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74029 + ... + 86224.

Almost surely, 2^977222794 is an apocalyptic number.

977222794 is a deficient number, since it is larger than the sum of its proper divisors (489101306).

977222794 is a wasteful number, since it uses less digits than its factorization.

977222794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163304.

The product of its digits is 889056, while the sum is 49.

The square root of 977222794 is about 31260.5629187959. The cubic root of 977222794 is about 992.3492127326.

The spelling of 977222794 in words is "nine hundred seventy-seven million, two hundred twenty-two thousand, seven hundred ninety-four".