734399887 has 4 divisors (see below), whose sum is σ = 790892200. Its totient is φ = 677907576.

The previous prime is 734399849. The next prime is 734399893. The reversal of 734399887 is 788993437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788993437 = 10303 ⋅76579.

It is a cyclic number.

It is not a de Polignac number, because 734399887 - 2⁷ = 734399759 is a prime.

It is a super-2 number, since 2×734399887² = 1078686388051225538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734399807) 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, 28246137 + ... + 28246162.

It is an arithmetic number, because the mean of its divisors is an integer number (197723050).

Almost surely, 2^734399887 is an apocalyptic number.

734399887 is a deficient number, since it is larger than the sum of its proper divisors (56492313).

734399887 is a wasteful number, since it uses less digits than its factorization.

734399887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56492312.

The product of its digits is 9144576, while the sum is 58.

The square root of 734399887 is about 27099.8134126418. The cubic root of 734399887 is about 902.2167114492.

The spelling of 734399887 in words is "seven hundred thirty-four million, three hundred ninety-nine thousand, eight hundred eighty-seven".