700130781 has 24 divisors (see below), whose sum is σ = 1156519104. Its totient is φ = 399816000.

The previous prime is 700130779. The next prime is 700130819. The reversal of 700130781 is 187031007.

It is not a de Polignac number, because 700130781 - 2¹ = 700130779 is a prime.

It is a super-2 number, since 2×700130781² = 980366221007339922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (700130581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139345 + ... + 144281.

It is an arithmetic number, because the mean of its divisors is an integer number (48188296).

Almost surely, 2^700130781 is an apocalyptic number.

It is an amenable number.

700130781 is a deficient number, since it is larger than the sum of its proper divisors (456388323).

700130781 is a wasteful number, since it uses less digits than its factorization.

700130781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201 (or 7198 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 700130781 is about 26459.9845238050. The cubic root of 700130781 is about 887.9592940009.

Adding to 700130781 its reverse (187031007), we get a palindrome (887161788).

The spelling of 700130781 in words is "seven hundred million, one hundred thirty thousand, seven hundred eighty-one".