8081002 has 4 divisors (see below), whose sum is σ = 12121506. Its totient is φ = 4040500.

The previous prime is 8080999. The next prime is 8081009. The reversal of 8081002 is 2001808.

It is a happy number.

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., 5517801 + 2563201 = 2349^2 + 1601^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8081009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020249 + ... + 2020252.

Almost surely, 2^8081002 is an apocalyptic number.

8081002 is a deficient number, since it is larger than the sum of its proper divisors (4040504).

8081002 is a wasteful number, since it uses less digits than its factorization.

8081002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040503.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 8081002 is about 2842.7103264314. The cubic root of 8081002 is about 200.6727511587.

The spelling of 8081002 in words is "eight million, eighty-one thousand, two".