3977152834 has 4 divisors (see below), whose sum is σ = 5965729254. Its totient is φ = 1988576416.

The previous prime is 3977152799. The next prime is 3977152841. The reversal of 3977152834 is 4382517793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3579030625 + 398122209 = 59825^2 + 19953^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 994288207 + ... + 994288210.

Almost surely, 2^3977152834 is an apocalyptic number.

3977152834 is a deficient number, since it is larger than the sum of its proper divisors (1988576420).

3977152834 is a wasteful number, since it uses less digits than its factorization.

3977152834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988576419.

The product of its digits is 1270080, while the sum is 49.

The square root of 3977152834 is about 63064.6718377254. The cubic root of 3977152834 is about 1584.3729781087.

The spelling of 3977152834 in words is "three billion, nine hundred seventy-seven million, one hundred fifty-two thousand, eight hundred thirty-four".