64842406 has 4 divisors (see below), whose sum is σ = 97263612. Its totient is φ = 32421202.

The previous prime is 64842397. The next prime is 64842419. The reversal of 64842406 is 60424846.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60424846 = 2 ⋅30212423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16210600 + ... + 16210603.

It is an arithmetic number, because the mean of its divisors is an integer number (24315903).

Almost surely, 2^64842406 is an apocalyptic number.

64842406 is a deficient number, since it is larger than the sum of its proper divisors (32421206).

64842406 is a wasteful number, since it uses less digits than its factorization.

64842406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32421205.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 64842406 is about 8052.4782520663. The cubic root of 64842406 is about 401.7473681463.

The spelling of 64842406 in words is "sixty-four million, eight hundred forty-two thousand, four hundred six".