8743497638 has 4 divisors (see below), whose sum is σ = 13115246460. Its totient is φ = 4371748818.

The previous prime is 8743497629. The next prime is 8743497673. The reversal of 8743497638 is 8367943478.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2185874408 + ... + 2185874411.

It is an arithmetic number, because the mean of its divisors is an integer number (3278811615).

Almost surely, 2^8743497638 is an apocalyptic number.

8743497638 is a deficient number, since it is larger than the sum of its proper divisors (4371748822).

8743497638 is a wasteful number, since it uses less digits than its factorization.

8743497638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371748821.

The product of its digits is 24385536, while the sum is 59.

The square root of 8743497638 is about 93506.6716229382. The cubic root of 8743497638 is about 2060.1320836225.

The spelling of 8743497638 in words is "eight billion, seven hundred forty-three million, four hundred ninety-seven thousand, six hundred thirty-eight".