70801090 has 16 divisors (see below), whose sum is σ = 134938872. Its totient is φ = 26654464.

The previous prime is 70801063. The next prime is 70801097. The reversal of 70801090 is 9010807.

It can be written as a sum of positive squares in 4 ways, for example, as 56746089 + 14055001 = 7533^2 + 3749^2 .

It is not an unprimeable number, because it can be changed into a prime (70801097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208069 + ... + 208408.

Almost surely, 2^70801090 is an apocalyptic number.

70801090 is a deficient number, since it is larger than the sum of its proper divisors (64137782).

70801090 is a wasteful number, since it uses less digits than its factorization.

70801090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416501.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 70801090 is about 8414.3383578271. The cubic root of 70801090 is about 413.6947231003.

Adding to 70801090 its reverse (9010807), we get a palindrome (79811897).

The spelling of 70801090 in words is "seventy million, eight hundred one thousand, ninety".