977228541 has 12 divisors (see below), whose sum is σ = 1412657532. Its totient is φ = 650975616.

The previous prime is 977228533. The next prime is 977228557. The reversal of 977228541 is 145822779.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 971568900 + 5659641 = 31170^2 + 2379^2 .

It is not a de Polignac number, because 977228541 - 2³ = 977228533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977229541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30186 + ... + 53531.

It is an arithmetic number, because the mean of its divisors is an integer number (117721461).

Almost surely, 2^977228541 is an apocalyptic number.

It is an amenable number.

977228541 is a deficient number, since it is larger than the sum of its proper divisors (435428991).

977228541 is a wasteful number, since it uses less digits than its factorization.

977228541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85020 (or 85017 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 977228541 is about 31260.6548395903. The cubic root of 977228541 is about 992.3511580481.

The spelling of 977228541 in words is "nine hundred seventy-seven million, two hundred twenty-eight thousand, five hundred forty-one".