28997410 has 32 divisors (see below), whose sum is σ = 59521392. Its totient is φ = 10076160.

The previous prime is 28997383. The next prime is 28997417. The reversal of 28997410 is 1479982.

It can be written as a sum of positive squares in 8 ways, for example, as 5870929 + 23126481 = 2423^2 + 4809^2 .

It is not an unprimeable number, because it can be changed into a prime (28997417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4351 + ... + 8770.

Almost surely, 2^28997410 is an apocalyptic number.

28997410 is an abundant number, since it is smaller than the sum of its proper divisors (30523982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28997410 is a wasteful number, since it uses less digits than its factorization.

28997410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13158.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 28997410 is about 5384.9243263021. The cubic root of 28997410 is about 307.2225359738. Note that the first 3 decimals are identical.

The spelling of 28997410 in words is "twenty-eight million, nine hundred ninety-seven thousand, four hundred ten".