977221214 has 8 divisors (see below), whose sum is σ = 1466143200. Its totient is φ = 488506816.

The previous prime is 977221213. The next prime is 977221237. The reversal of 977221214 is 412122779.

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

It is a super-2 number, since 2×977221214² = 1909922602183267592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977221213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39539 + ... + 59310.

It is an arithmetic number, because the mean of its divisors is an integer number (183267900).

Almost surely, 2^977221214 is an apocalyptic number.

977221214 is a deficient number, since it is larger than the sum of its proper divisors (488921986).

977221214 is a wasteful number, since it uses less digits than its factorization.

977221214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103794.

The product of its digits is 14112, while the sum is 35.

The square root of 977221214 is about 31260.5376473278. The cubic root of 977221214 is about 992.3486779134.

The spelling of 977221214 in words is "nine hundred seventy-seven million, two hundred twenty-one thousand, two hundred fourteen".