28970104 has 8 divisors (see below), whose sum is σ = 54318960. Its totient is φ = 14485048.

The previous prime is 28970099. The next prime is 28970107. The reversal of 28970104 is 40107982.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28970107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810624 + ... + 1810639.

It is an arithmetic number, because the mean of its divisors is an integer number (6789870).

Almost surely, 2^28970104 is an apocalyptic number.

It is an amenable number.

28970104 is a deficient number, since it is larger than the sum of its proper divisors (25348856).

28970104 is a wasteful number, since it uses less digits than its factorization.

28970104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3621269 (or 3621265 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 28970104 is about 5382.3883174665. The cubic root of 28970104 is about 307.1260715749.

The spelling of 28970104 in words is "twenty-eight million, nine hundred seventy thousand, one hundred four".