28963401 has 8 divisors (see below), whose sum is σ = 38765760. Its totient is φ = 19234992.

The previous prime is 28963379. The next prime is 28963409. The reversal of 28963401 is 10436982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-28963401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28963409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17566 + ... + 19143.

It is an arithmetic number, because the mean of its divisors is an integer number (4845720).

Almost surely, 2^28963401 is an apocalyptic number.

It is an amenable number.

28963401 is a deficient number, since it is larger than the sum of its proper divisors (9802359).

28963401 is a wasteful number, since it uses less digits than its factorization.

28963401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36975.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 28963401 is about 5381.7656024766. The cubic root of 28963401 is about 307.1023825004.

The spelling of 28963401 in words is "twenty-eight million, nine hundred sixty-three thousand, four hundred one".