3988172954 has 4 divisors (see below), whose sum is σ = 5982259434. Its totient is φ = 1994086476.

The previous prime is 3988172939. The next prime is 3988172957. The reversal of 3988172954 is 4592718893.

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., 2613765625 + 1374407329 = 51125^2 + 37073^2 .

It is a super-2 number, since 2×3988172954² = 31811047022034172232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3988172954.

It is not an unprimeable number, because it can be changed into a prime (3988172957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997043237 + ... + 997043240.

Almost surely, 2^3988172954 is an apocalyptic number.

3988172954 is a deficient number, since it is larger than the sum of its proper divisors (1994086480).

3988172954 is a wasteful number, since it uses less digits than its factorization.

3988172954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994086479.

The product of its digits is 4354560, while the sum is 56.

The square root of 3988172954 is about 63151.9829775756. The cubic root of 3988172954 is about 1585.8349853522.

The spelling of 3988172954 in words is "three billion, nine hundred eighty-eight million, one hundred seventy-two thousand, nine hundred fifty-four".