740855807 has 4 divisors (see below), whose sum is σ = 741205920. Its totient is φ = 740505696.

The previous prime is 740855749. The next prime is 740855821. The reversal of 740855807 is 708558047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708558047 = 2843 ⋅249229.

It is a cyclic number.

It is not a de Polignac number, because 740855807 - 2¹² = 740851711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740855827) 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, 171863 + ... + 176120.

It is an arithmetic number, because the mean of its divisors is an integer number (185301480).

Almost surely, 2^740855807 is an apocalyptic number.

740855807 is a deficient number, since it is larger than the sum of its proper divisors (350113).

740855807 is a wasteful number, since it uses less digits than its factorization.

740855807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350112.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 740855807 is about 27218.6665176676. Note that the first 3 decimals coincide. The cubic root of 740855807 is about 904.8527204548.

The spelling of 740855807 in words is "seven hundred forty million, eight hundred fifty-five thousand, eight hundred seven".