720771532 has 12 divisors (see below), whose sum is σ = 1358377216. Its totient is φ = 332663760.

The previous prime is 720771529. The next prime is 720771533. The reversal of 720771532 is 235177027.

It is a happy number.

It is a super-3 number, since 3×720771532³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (720771533) 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, 6930444 + ... + 6930547.

Almost surely, 2^720771532 is an apocalyptic number.

It is an amenable number.

720771532 is a deficient number, since it is larger than the sum of its proper divisors (637605684).

720771532 is a wasteful number, since it uses less digits than its factorization.

720771532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13861008 (or 13861006 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 720771532 is about 26847.1885306451. The cubic root of 720771532 is about 896.6009782834.

The spelling of 720771532 in words is "seven hundred twenty million, seven hundred seventy-one thousand, five hundred thirty-two".