620297461 has 4 divisors (see below), whose sum is σ = 708911392. Its totient is φ = 531683532.

The previous prime is 620297449. The next prime is 620297473. The reversal of 620297461 is 164792026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (620297449) and next prime (620297473).

It is a cyclic number.

It is not a de Polignac number, because 620297461 - 2⁷ = 620297333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620297461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620297401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44306955 + ... + 44306968.

It is an arithmetic number, because the mean of its divisors is an integer number (177227848).

Almost surely, 2^620297461 is an apocalyptic number.

It is an amenable number.

620297461 is a deficient number, since it is larger than the sum of its proper divisors (88613931).

620297461 is an equidigital number, since it uses as much as digits as its factorization.

620297461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88613930.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 620297461 is about 24905.7716403247. The cubic root of 620297461 is about 852.8382451055.

The spelling of 620297461 in words is "six hundred twenty million, two hundred ninety-seven thousand, four hundred sixty-one".