740638887 has 8 divisors (see below), whose sum is σ = 1019374080. Its totient is φ = 477831480.

The previous prime is 740638841. The next prime is 740638891. The reversal of 740638887 is 788836047.

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

It is not a de Polignac number, because 740638887 - 2²⁶ = 673530023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740638817) 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, 3981837 + ... + 3982022.

It is an arithmetic number, because the mean of its divisors is an integer number (127421760).

Almost surely, 2^740638887 is an apocalyptic number.

740638887 is a deficient number, since it is larger than the sum of its proper divisors (278735193).

740638887 is a wasteful number, since it uses less digits than its factorization.

740638887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963893.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 740638887 is about 27214.6814605646. The cubic root of 740638887 is about 904.7643992591.

The spelling of 740638887 in words is "seven hundred forty million, six hundred thirty-eight thousand, eight hundred eighty-seven".