64070437 has 4 divisors (see below), whose sum is σ = 64097740. Its totient is φ = 64043136.

The previous prime is 64070411. The next prime is 64070441. The reversal of 64070437 is 73407046.

64070437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40972801 + 23097636 = 6401^2 + 4806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64070437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64070399 and 64070408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64070407) 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, 9762 + ... + 14947.

It is an arithmetic number, because the mean of its divisors is an integer number (16024435).

Almost surely, 2^64070437 is an apocalyptic number.

It is an amenable number.

64070437 is a deficient number, since it is larger than the sum of its proper divisors (27303).

64070437 is a wasteful number, since it uses less digits than its factorization.

64070437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27302.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 64070437 is about 8004.4011018939. The cubic root of 64070437 is about 400.1466899486.

The spelling of 64070437 in words is "sixty-four million, seventy thousand, four hundred thirty-seven".