707020945 has 8 divisors (see below), whose sum is σ = 850944744. Its totient is φ = 563937024.

The previous prime is 707020877. The next prime is 707020949. The reversal of 707020945 is 549020707.

It can be written as a sum of positive squares in 4 ways, for example, as 8317456 + 698703489 = 2884^2 + 26433^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 707020945 - 2⁷ = 707020817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 707020945.

It is not an unprimeable number, because it can be changed into a prime (707020949) 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, 208114 + ... + 211483.

It is an arithmetic number, because the mean of its divisors is an integer number (106368093).

Almost surely, 2^707020945 is an apocalyptic number.

It is an amenable number.

707020945 is a deficient number, since it is larger than the sum of its proper divisors (143923799).

707020945 is a wasteful number, since it uses less digits than its factorization.

707020945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419939.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 707020945 is about 26589.8654565983. The cubic root of 707020945 is about 890.8626677421.

The spelling of 707020945 in words is "seven hundred seven million, twenty thousand, nine hundred forty-five".