28650677 has 8 divisors (see below), whose sum is σ = 32018112. Its totient is φ = 25410400.

The previous prime is 28650659. The next prime is 28650707. The reversal of 28650677 is 77605682.

It is a happy number.

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 28650677 - 2⁸ = 28650421 is a prime.

It is a super-2 number, since 2×28650677² = 1641722585116658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650277) 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, 31313 + ... + 32214.

It is an arithmetic number, because the mean of its divisors is an integer number (4002264).

Almost surely, 2^28650677 is an apocalyptic number.

It is an amenable number.

28650677 is a deficient number, since it is larger than the sum of its proper divisors (3367435).

28650677 is a wasteful number, since it uses less digits than its factorization.

28650677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63579.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 28650677 is about 5352.6327167105. The cubic root of 28650677 is about 305.9930972285.

The spelling of 28650677 in words is "twenty-eight million, six hundred fifty thousand, six hundred seventy-seven".