28952949 has 4 divisors (see below), whose sum is σ = 38603936. Its totient is φ = 19301964.

The previous prime is 28952939. The next prime is 28952971. The reversal of 28952949 is 94925982.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28952949 - 2⁷ = 28952821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28952898 and 28952907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28952909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4825489 + ... + 4825494.

It is an arithmetic number, because the mean of its divisors is an integer number (9650984).

Almost surely, 2^28952949 is an apocalyptic number.

It is an amenable number.

28952949 is a deficient number, since it is larger than the sum of its proper divisors (9650987).

28952949 is an equidigital number, since it uses as much as digits as its factorization.

28952949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9650986.

The product of its digits is 466560, while the sum is 48.

The square root of 28952949 is about 5380.7944580703. The cubic root of 28952949 is about 307.0654367899.

The spelling of 28952949 in words is "twenty-eight million, nine hundred fifty-two thousand, nine hundred forty-nine".