70497811 has 8 divisors (see below), whose sum is σ = 73032480. Its totient is φ = 67970112.

The previous prime is 70497799. The next prime is 70497841. The reversal of 70497811 is 11879407.

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 70497811 - 2⁹ = 70497299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70497841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27271 + ... + 29743.

It is an arithmetic number, because the mean of its divisors is an integer number (9129060).

Almost surely, 2^70497811 is an apocalyptic number.

70497811 is a deficient number, since it is larger than the sum of its proper divisors (2534669).

70497811 is a wasteful number, since it uses less digits than its factorization.

70497811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 70497811 is about 8396.2974578084. The cubic root of 70497811 is about 413.1031856256.

The spelling of 70497811 in words is "seventy million, four hundred ninety-seven thousand, eight hundred eleven".