28923002 has 4 divisors (see below), whose sum is σ = 43384506. Its totient is φ = 14461500.

The previous prime is 28922987. The next prime is 28923019. The reversal of 28923002 is 20032982.

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., 28313041 + 609961 = 5321^2 + 781^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7230749 + ... + 7230752.

Almost surely, 2^28923002 is an apocalyptic number.

28923002 is a deficient number, since it is larger than the sum of its proper divisors (14461504).

28923002 is a wasteful number, since it uses less digits than its factorization.

28923002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14461503.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 28923002 is about 5378.0109706099. The cubic root of 28923002 is about 306.9595309294.

Adding to 28923002 its reverse (20032982), we get a palindrome (48955984).

The spelling of 28923002 in words is "twenty-eight million, nine hundred twenty-three thousand, two".