8001587402 has 4 divisors (see below), whose sum is σ = 12002381106. Its totient is φ = 4000793700.

The previous prime is 8001587389. The next prime is 8001587423. The reversal of 8001587402 is 2047851008.

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., 4451691841 + 3549895561 = 66721^2 + 59581^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000396849 + ... + 2000396852.

Almost surely, 2^8001587402 is an apocalyptic number.

8001587402 is a deficient number, since it is larger than the sum of its proper divisors (4000793704).

8001587402 is a wasteful number, since it uses less digits than its factorization.

8001587402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000793703.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 8001587402 is about 89451.5925067855. The cubic root of 8001587402 is about 2000.1322747515.

The spelling of 8001587402 in words is "eight billion, one million, five hundred eighty-seven thousand, four hundred two".