70650890 has 8 divisors (see below), whose sum is σ = 127171620. Its totient is φ = 28260352.

The previous prime is 70650889. The next prime is 70650901. The reversal of 70650890 is 9805607.

It can be written as a sum of positive squares in 2 ways, for example, as 58323769 + 12327121 = 7637^2 + 3511^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70650890.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3532535 + ... + 3532554.

Almost surely, 2^70650890 is an apocalyptic number.

70650890 is a deficient number, since it is larger than the sum of its proper divisors (56520730).

70650890 is a wasteful number, since it uses less digits than its factorization.

70650890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7065096.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 70650890 is about 8405.4083779433. The cubic root of 70650890 is about 413.4019736567.

The spelling of 70650890 in words is "seventy million, six hundred fifty thousand, eight hundred ninety".