1977296634 has 12 divisors (see below), whose sum is σ = 4284142746. Its totient is φ = 659098872.

The previous prime is 1977296621. The next prime is 1977296663. The reversal of 1977296634 is 4366927791.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1394798409 + 582498225 = 37347^2 + 24135^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54924889 + ... + 54924924.

Almost surely, 2^1977296634 is an apocalyptic number.

1977296634 is an abundant number, since it is smaller than the sum of its proper divisors (2306846112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1977296634 is a wasteful number, since it uses less digits than its factorization.

1977296634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109849821 (or 109849818 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 1977296634 is about 44466.8037304234. The cubic root of 1977296634 is about 1255.1354877719.

The spelling of 1977296634 in words is "one billion, nine hundred seventy-seven million, two hundred ninety-six thousand, six hundred thirty-four".