728773527 has 32 divisors (see below), whose sum is σ = 1060378560. Its totient is φ = 443473920.

The previous prime is 728773517. The next prime is 728773537. The reversal of 728773527 is 725377827.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (728773517) and next prime (728773537).

It is not a de Polignac number, because 728773527 - 2¹⁸ = 728511383 is a prime.

It is a super-2 number, since 2×728773527² = 1062221707312039458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728773517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225499 + ... + 228707.

It is an arithmetic number, because the mean of its divisors is an integer number (33136830).

Almost surely, 2^728773527 is an apocalyptic number.

728773527 is a deficient number, since it is larger than the sum of its proper divisors (331605033).

728773527 is a wasteful number, since it uses less digits than its factorization.

728773527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363.

The product of its digits is 1152480, while the sum is 48.

The square root of 728773527 is about 26995.8057297796. The cubic root of 728773527 is about 899.9067915818.

The spelling of 728773527 in words is "seven hundred twenty-eight million, seven hundred seventy-three thousand, five hundred twenty-seven".