28629343 has 4 divisors (see below), whose sum is σ = 30313440. Its totient is φ = 26945248.

The previous prime is 28629331. The next prime is 28629347. The reversal of 28629343 is 34392682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28629343 is a prime.

It is a super-2 number, since 2×28629343² = 1639278561223298, 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 (28629347) 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, 842023 + ... + 842056.

It is an arithmetic number, because the mean of its divisors is an integer number (7578360).

Almost surely, 2^28629343 is an apocalyptic number.

28629343 is a deficient number, since it is larger than the sum of its proper divisors (1684097).

28629343 is a wasteful number, since it uses less digits than its factorization.

28629343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684096.

The product of its digits is 62208, while the sum is 37.

The square root of 28629343 is about 5350.6394944904. The cubic root of 28629343 is about 305.9171283695.

The spelling of 28629343 in words is "twenty-eight million, six hundred twenty-nine thousand, three hundred forty-three".