740715861 has 4 divisors (see below), whose sum is σ = 987621152. Its totient is φ = 493810572.

The previous prime is 740715841. The next prime is 740715907. The reversal of 740715861 is 168517047.

740715861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168517047 = 3 ⋅56172349.

It is not a de Polignac number, because 740715861 - 2⁶ = 740715797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740715841) 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, 123452641 + ... + 123452646.

It is an arithmetic number, because the mean of its divisors is an integer number (246905288).

Almost surely, 2^740715861 is an apocalyptic number.

It is an amenable number.

740715861 is a deficient number, since it is larger than the sum of its proper divisors (246905291).

740715861 is a wasteful number, since it uses less digits than its factorization.

740715861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246905290.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 740715861 is about 27216.0956237297. The cubic root of 740715861 is about 904.7957419839.

The spelling of 740715861 in words is "seven hundred forty million, seven hundred fifteen thousand, eight hundred sixty-one".