70897601 has 4 divisors (see below), whose sum is σ = 70950612. Its totient is φ = 70844592.

The previous prime is 70897597. The next prime is 70897691. The reversal of 70897601 is 10679807.

It is a happy number.

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 52200625 + 18696976 = 7225^2 + 4324^2 .

It is a cyclic number.

It is not a de Polignac number, because 70897601 - 2² = 70897597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70897691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24446 + ... + 27191.

It is an arithmetic number, because the mean of its divisors is an integer number (17737653).

Almost surely, 2^70897601 is an apocalyptic number.

It is an amenable number.

70897601 is a deficient number, since it is larger than the sum of its proper divisors (53011).

70897601 is a wasteful number, since it uses less digits than its factorization.

70897601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53010.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 70897601 is about 8420.0713179878. The cubic root of 70897601 is about 413.8826108089.

The spelling of 70897601 in words is "seventy million, eight hundred ninety-seven thousand, six hundred one".