619672057 has 2 divisors, whose sum is σ = 619672058. Its totient is φ = 619672056.

The previous prime is 619672043. The next prime is 619672069. The reversal of 619672057 is 750276916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331385616 + 288286441 = 18204^2 + 16979^2 .

It is a cyclic number.

It is not a de Polignac number, because 619672057 - 2¹⁵ = 619639289 is a prime.

It is a super-2 number, since 2×619672057² = 767986916453222498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (619672657) 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 as a sum of consecutive naturals, namely, 309836028 + 309836029.

It is an arithmetic number, because the mean of its divisors is an integer number (309836029).

Almost surely, 2^619672057 is an apocalyptic number.

It is an amenable number.

619672057 is a deficient number, since it is larger than the sum of its proper divisors (1).

619672057 is an equidigital number, since it uses as much as digits as its factorization.

619672057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 619672057 is about 24893.2130710360. The cubic root of 619672057 is about 852.5515290072.

The spelling of 619672057 in words is "six hundred nineteen million, six hundred seventy-two thousand, fifty-seven".