705087242 has 4 divisors (see below), whose sum is σ = 1057630866. Its totient is φ = 352543620.

The previous prime is 705087233. The next prime is 705087247. The reversal of 705087242 is 242780507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242780507 = 3727 ⋅65141.

It can be written as a sum of positive squares in only one way, i.e., 655820881 + 49266361 = 25609^2 + 7019^2 .

It is a super-4 number, since 4×705087242⁴ (a number of 36 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (705087247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176271809 + ... + 176271812.

Almost surely, 2^705087242 is an apocalyptic number.

705087242 is a deficient number, since it is larger than the sum of its proper divisors (352543624).

705087242 is a wasteful number, since it uses less digits than its factorization.

705087242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352543623.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 705087242 is about 26553.4789057856. The cubic root of 705087242 is about 890.0497560871.

The spelling of 705087242 in words is "seven hundred five million, eighty-seven thousand, two hundred forty-two".