28629154 has 4 divisors (see below), whose sum is σ = 42943734. Its totient is φ = 14314576.

The previous prime is 28629149. The next prime is 28629163. The reversal of 28629154 is 45192682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45192682 = 2 ⋅22596341.

It can be written as a sum of positive squares in only one way, i.e., 28355625 + 273529 = 5325^2 + 523^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7157287 + ... + 7157290.

Almost surely, 2^28629154 is an apocalyptic number.

28629154 is a deficient number, since it is larger than the sum of its proper divisors (14314580).

28629154 is a wasteful number, since it uses less digits than its factorization.

28629154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14314579.

The product of its digits is 34560, while the sum is 37.

The square root of 28629154 is about 5350.6218330209. The cubic root of 28629154 is about 305.9164551853.

The spelling of 28629154 in words is "twenty-eight million, six hundred twenty-nine thousand, one hundred fifty-four".