28761429 has 8 divisors (see below), whose sum is σ = 38374560. Its totient is φ = 19161296.

The previous prime is 28761427. The next prime is 28761437. The reversal of 28761429 is 92416782.

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

It is a cyclic number.

It is not a de Polignac number, because 28761429 - 2¹ = 28761427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28761427) 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, 4687 + ... + 8915.

It is an arithmetic number, because the mean of its divisors is an integer number (4796820).

Almost surely, 2^28761429 is an apocalyptic number.

It is an amenable number.

28761429 is a deficient number, since it is larger than the sum of its proper divisors (9613131).

28761429 is a wasteful number, since it uses less digits than its factorization.

28761429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499.

The product of its digits is 48384, while the sum is 39.

The square root of 28761429 is about 5362.9683012302. The cubic root of 28761429 is about 306.3868723740.

It can be divided in two parts, 287 and 61429, that added together give a palindrome (61716).

The spelling of 28761429 in words is "twenty-eight million, seven hundred sixty-one thousand, four hundred twenty-nine".