740123971 has 4 divisors (see below), whose sum is σ = 740695912. Its totient is φ = 739552032.

The previous prime is 740123941. The next prime is 740123983. The reversal of 740123971 is 179321047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179321047 = 13033 ⋅13759.

It is a cyclic number.

It is not a de Polignac number, because 740123971 - 2⁵ = 740123939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740123941) 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, 284025 + ... + 286618.

It is an arithmetic number, because the mean of its divisors is an integer number (185173978).

Almost surely, 2^740123971 is an apocalyptic number.

740123971 is a deficient number, since it is larger than the sum of its proper divisors (571941).

740123971 is a wasteful number, since it uses less digits than its factorization.

740123971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571940.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 740123971 is about 27205.2195543429. The cubic root of 740123971 is about 904.5546768696.

The spelling of 740123971 in words is "seven hundred forty million, one hundred twenty-three thousand, nine hundred seventy-one".