621471614 has 4 divisors (see below), whose sum is σ = 932207424. Its totient is φ = 310735806.

The previous prime is 621471607. The next prime is 621471623. The reversal of 621471614 is 416174126.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155367902 + ... + 155367905.

It is an arithmetic number, because the mean of its divisors is an integer number (233051856).

Almost surely, 2^621471614 is an apocalyptic number.

621471614 is a deficient number, since it is larger than the sum of its proper divisors (310735810).

621471614 is a wasteful number, since it uses less digits than its factorization.

621471614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310735809.

The product of its digits is 8064, while the sum is 32.

The square root of 621471614 is about 24929.3324018113. The cubic root of 621471614 is about 853.3760147448.

The spelling of 621471614 in words is "six hundred twenty-one million, four hundred seventy-one thousand, six hundred fourteen".