70806090 has 16 divisors (see below), whose sum is σ = 169934688. Its totient is φ = 18881616.

The previous prime is 70806089. The next prime is 70806091. The reversal of 70806090 is 9060807.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70806089) and next prime (70806091).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2360203 = 70806090 / (7 + 0 + 8 + 0 + 6 + 0 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (70806091) 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, 1180072 + ... + 1180131.

It is an arithmetic number, because the mean of its divisors is an integer number (10620918).

Almost surely, 2^70806090 is an apocalyptic number.

70806090 is an abundant number, since it is smaller than the sum of its proper divisors (99128598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70806090 is a wasteful number, since it uses less digits than its factorization.

70806090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360213.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 70806090 is about 8414.6354644750. The cubic root of 70806090 is about 413.7044612975.

Adding to 70806090 its reverse (9060807), we get a palindrome (79866897).

The spelling of 70806090 in words is "seventy million, eight hundred six thousand, ninety".