645347414 has 8 divisors (see below), whose sum is σ = 994183968. Its totient is φ = 313952760.

The previous prime is 645347413. The next prime is 645347431. The reversal of 645347414 is 414743546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645347413) 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, 4360382 + ... + 4360529.

It is an arithmetic number, because the mean of its divisors is an integer number (124272996).

Almost surely, 2^645347414 is an apocalyptic number.

645347414 is a deficient number, since it is larger than the sum of its proper divisors (348836554).

645347414 is a wasteful number, since it uses less digits than its factorization.

645347414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8720950.

The product of its digits is 161280, while the sum is 38.

The square root of 645347414 is about 25403.6889840826. The cubic root of 645347414 is about 864.1673585196.

The spelling of 645347414 in words is "six hundred forty-five million, three hundred forty-seven thousand, four hundred fourteen".