70825811 has 8 divisors (see below), whose sum is σ = 81779040. Its totient is φ = 60081408.

The previous prime is 70825771. The next prime is 70825813. The reversal of 70825811 is 11852807.

It is a happy number.

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 70825811 - 2⁶ = 70825747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70825813) 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, 51476 + ... + 52833.

It is an arithmetic number, because the mean of its divisors is an integer number (10222380).

Almost surely, 2^70825811 is an apocalyptic number.

70825811 is a deficient number, since it is larger than the sum of its proper divisors (10953229).

70825811 is a wasteful number, since it uses less digits than its factorization.

70825811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104413.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 70825811 is about 8415.8072102443. The cubic root of 70825811 is about 413.7428662254.

The spelling of 70825811 in words is "seventy million, eight hundred twenty-five thousand, eight hundred eleven".