620196751 has 4 divisors (see below), whose sum is σ = 623910672. Its totient is φ = 616482832.

The previous prime is 620196749. The next prime is 620196781. The reversal of 620196751 is 157691026.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157691026 = 2 ⋅78845513.

It is a cyclic number.

It is not a de Polignac number, because 620196751 - 2¹ = 620196749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620196751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620196781) 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, 1856710 + ... + 1857043.

It is an arithmetic number, because the mean of its divisors is an integer number (155977668).

Almost surely, 2^620196751 is an apocalyptic number.

620196751 is a deficient number, since it is larger than the sum of its proper divisors (3713921).

620196751 is a wasteful number, since it uses less digits than its factorization.

620196751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713920.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 620196751 is about 24903.7497377403. The cubic root of 620196751 is about 852.7920876871.

The spelling of 620196751 in words is "six hundred twenty million, one hundred ninety-six thousand, seven hundred fifty-one".