28207954 has 8 divisors (see below), whose sum is σ = 43676928. Its totient is φ = 13648980.

The previous prime is 28207937. The next prime is 28207967. The reversal of 28207954 is 45970282.

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

It is a super-2 number, since 2×28207954² = 1591377337732232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227422 + ... + 227545.

It is an arithmetic number, because the mean of its divisors is an integer number (5459616).

Almost surely, 2^28207954 is an apocalyptic number.

28207954 is a deficient number, since it is larger than the sum of its proper divisors (15468974).

28207954 is a wasteful number, since it uses less digits than its factorization.

28207954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455000.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 28207954 is about 5311.1160785658. The cubic root of 28207954 is about 304.4087947415.

It can be divided in two parts, 28207 and 954, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 28207954 in words is "twenty-eight million, two hundred seven thousand, nine hundred fifty-four".