28922365 has 8 divisors (see below), whose sum is σ = 35362008. Its totient is φ = 22701120.

The previous prime is 28922363. The next prime is 28922371. The reversal of 28922365 is 56322982.

It can be written as a sum of positive squares in 4 ways, for example, as 13089924 + 15832441 = 3618^2 + 3979^2 .

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

It is not a de Polignac number, because 28922365 - 2¹ = 28922363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28922363) 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, 54306 + ... + 54835.

It is an arithmetic number, because the mean of its divisors is an integer number (4420251).

Almost surely, 2^28922365 is an apocalyptic number.

It is an amenable number.

28922365 is a deficient number, since it is larger than the sum of its proper divisors (6439643).

28922365 is a wasteful number, since it uses less digits than its factorization.

28922365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109199.

The product of its digits is 51840, while the sum is 37.

The square root of 28922365 is about 5377.9517476452. The cubic root of 28922365 is about 306.9572774213.

The spelling of 28922365 in words is "twenty-eight million, nine hundred twenty-two thousand, three hundred sixty-five".