28670526 has 12 divisors (see below), whose sum is σ = 62119512. Its totient is φ = 9556836.

The previous prime is 28670513. The next prime is 28670539. The reversal of 28670526 is 62507682.

It is an interprime number because it is at equal distance from previous prime (28670513) and next prime (28670539).

It is a super-2 number, since 2×28670526² = 1643998122233352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 796386 + ... + 796421.

It is an arithmetic number, because the mean of its divisors is an integer number (5176626).

Almost surely, 2^28670526 is an apocalyptic number.

28670526 is an abundant number, since it is smaller than the sum of its proper divisors (33448986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28670526 is a wasteful number, since it uses less digits than its factorization.

28670526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592815 (or 1592812 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 28670526 is about 5354.4865300045. The cubic root of 28670526 is about 306.0637442494.

The spelling of 28670526 in words is "twenty-eight million, six hundred seventy thousand, five hundred twenty-six".