620143465 has 8 divisors (see below), whose sum is σ = 754653888. Its totient is φ = 489126960.

The previous prime is 620143429. The next prime is 620143477. The reversal of 620143465 is 564341026.

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

It is not a de Polignac number, because 620143465 - 2⁹ = 620142953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873087 + ... + 873796.

It is an arithmetic number, because the mean of its divisors is an integer number (94331736).

Almost surely, 2^620143465 is an apocalyptic number.

It is an amenable number.

620143465 is a deficient number, since it is larger than the sum of its proper divisors (134510423).

620143465 is a wasteful number, since it uses less digits than its factorization.

620143465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746959.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 620143465 is about 24902.6798758688. The cubic root of 620143465 is about 852.7676636203.

The spelling of 620143465 in words is "six hundred twenty million, one hundred forty-three thousand, four hundred sixty-five".