70947697 has 4 divisors (see below), whose sum is σ = 72110836. Its totient is φ = 69784560.

The previous prime is 70947683. The next prime is 70947731. The reversal of 70947697 is 79674907.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 790321 + 70157376 = 889^2 + 8376^2 .

It is a cyclic number.

It is not a de Polignac number, because 70947697 - 2¹¹ = 70945649 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 70947697.

It is not an unprimeable number, because it can be changed into a prime (70947607) 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 3 ways as a sum of consecutive naturals, for example, 581478 + ... + 581599.

It is an arithmetic number, because the mean of its divisors is an integer number (18027709).

Almost surely, 2^70947697 is an apocalyptic number.

It is an amenable number.

70947697 is a deficient number, since it is larger than the sum of its proper divisors (1163139).

70947697 is a wasteful number, since it uses less digits than its factorization.

70947697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163138.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 70947697 is about 8423.0455893341. The cubic root of 70947697 is about 413.9800705320.

The spelling of 70947697 in words is "seventy million, nine hundred forty-seven thousand, six hundred ninety-seven".