64420467 has 4 divisors (see below), whose sum is σ = 85893960. Its totient is φ = 42946976.

The previous prime is 64420451. The next prime is 64420481. The reversal of 64420467 is 76402446.

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

It is a cyclic number.

It is not a de Polignac number, because 64420467 - 2⁴ = 64420451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64420427) 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, 10736742 + ... + 10736747.

It is an arithmetic number, because the mean of its divisors is an integer number (21473490).

Almost surely, 2^64420467 is an apocalyptic number.

64420467 is a deficient number, since it is larger than the sum of its proper divisors (21473493).

64420467 is a wasteful number, since it uses less digits than its factorization.

64420467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21473492.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 64420467 is about 8026.2361664730. The cubic root of 64420467 is about 400.8740615664.

The spelling of 64420467 in words is "sixty-four million, four hundred twenty thousand, four hundred sixty-seven".