705147937 has 12 divisors (see below), whose sum is σ = 764425404. Its totient is φ = 650170560.

The previous prime is 705147901. The next prime is 705147941. The reversal of 705147937 is 739741507.

It can be written as a sum of positive squares in 6 ways, for example, as 564001 + 704583936 = 751^2 + 26544^2 .

It is a de Polignac number, because none of the positive numbers 2^k-705147937 is a prime.

It is a super-2 number, since 2×705147937² = 994467226110711938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 705147893 and 705147902.

It is not an unprimeable number, because it can be changed into a prime (705147967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197823 + ... + 201355.

It is an arithmetic number, because the mean of its divisors is an integer number (63702117).

Almost surely, 2^705147937 is an apocalyptic number.

It is an amenable number.

705147937 is a deficient number, since it is larger than the sum of its proper divisors (59277467).

705147937 is a wasteful number, since it uses less digits than its factorization.

705147937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740 (or 4727 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 705147937 is about 26554.6217634520. The cubic root of 705147937 is about 890.0752943074.

The spelling of 705147937 in words is "seven hundred five million, one hundred forty-seven thousand, nine hundred thirty-seven".