28634701 has 4 divisors (see below), whose sum is σ = 29879712. Its totient is φ = 27389692.

The previous prime is 28634693. The next prime is 28634717. The reversal of 28634701 is 10743682.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10743682 = 2 ⋅5371841.

It is a cyclic number.

It is not a de Polignac number, because 28634701 - 2³ = 28634693 is a prime.

It is a super-2 number, since 2×28634701² = 1639892202718802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28634741) 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, 622471 + ... + 622516.

It is an arithmetic number, because the mean of its divisors is an integer number (7469928).

Almost surely, 2^28634701 is an apocalyptic number.

It is an amenable number.

28634701 is a deficient number, since it is larger than the sum of its proper divisors (1245011).

28634701 is a wasteful number, since it uses less digits than its factorization.

28634701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245010.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28634701 is about 5351.1401588820. The cubic root of 28634701 is about 305.9362113750.

The spelling of 28634701 in words is "twenty-eight million, six hundred thirty-four thousand, seven hundred one".