740720563 has 8 divisors (see below), whose sum is σ = 808259760. Its totient is φ = 673214880.

The previous prime is 740720557. The next prime is 740720587. The reversal of 740720563 is 365027047.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740720563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (740720363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68781 + ... + 78817.

It is an arithmetic number, because the mean of its divisors is an integer number (101032470).

Almost surely, 2^740720563 is an apocalyptic number.

740720563 is a deficient number, since it is larger than the sum of its proper divisors (67539197).

740720563 is a wasteful number, since it uses less digits than its factorization.

740720563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16757.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 740720563 is about 27216.1820062991. The cubic root of 740720563 is about 904.7976565015.

The spelling of 740720563 in words is "seven hundred forty million, seven hundred twenty thousand, five hundred sixty-three".