70599997 has 16 divisors (see below), whose sum is σ = 81838512. Its totient is φ = 60318720.

The previous prime is 70599943. The next prime is 70600003. The reversal of 70599997 is 79999507.

It can be written as a sum of positive squares in 8 ways, for example, as 1610361 + 68989636 = 1269^2 + 8306^2 .

It is not a de Polignac number, because 70599997 - 2¹¹ = 70597949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70599197) 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 15 ways as a sum of consecutive naturals, for example, 10863 + ... + 16099.

It is an arithmetic number, because the mean of its divisors is an integer number (5114907).

Almost surely, 2^70599997 is an apocalyptic number.

It is an amenable number.

70599997 is a deficient number, since it is larger than the sum of its proper divisors (11238515).

70599997 is a wasteful number, since it uses less digits than its factorization.

70599997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328.

The product of its (nonzero) digits is 1607445, while the sum is 55.

The square root of 70599997 is about 8402.3804365192. The cubic root of 70599997 is about 413.3026858274.

The spelling of 70599997 in words is "seventy million, five hundred ninety-nine thousand, nine hundred ninety-seven".