536478731 has 4 divisors (see below), whose sum is σ = 536538000. Its totient is φ = 536419464.

The previous prime is 536478697. The next prime is 536478757. The reversal of 536478731 is 137874635.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-536478731 is a prime.

It is a super-2 number, since 2×536478731² = 575618857630740722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536478781) 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, 12911 + ... + 35208.

It is an arithmetic number, because the mean of its divisors is an integer number (134134500).

Almost surely, 2^536478731 is an apocalyptic number.

536478731 is a deficient number, since it is larger than the sum of its proper divisors (59269).

536478731 is a wasteful number, since it uses less digits than its factorization.

536478731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59268.

The product of its digits is 423360, while the sum is 44.

The square root of 536478731 is about 23162.0105129067. The cubic root of 536478731 is about 812.5513875507.

The spelling of 536478731 in words is "five hundred thirty-six million, four hundred seventy-eight thousand, seven hundred thirty-one".