742619 has 2 divisors, whose sum is σ = 742620. Its totient is φ = 742618.

The previous prime is 742607. The next prime is 742657. The reversal of 742619 is 916247.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 742619 - 2¹² = 738523 is a prime.

It is a super-2 number, since 2×742619² = 1102965958322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 742591 and 742600.

It is not a weakly prime, because it can be changed into another prime (742699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371309 + 371310.

It is an arithmetic number, because the mean of its divisors is an integer number (371310).

2⁷⁴²⁶¹⁹ is an apocalyptic number.

742619 is a deficient number, since it is larger than the sum of its proper divisors (1).

742619 is an equidigital number, since it uses as much as digits as its factorization.

742619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 742619 is about 861.7534450178. The cubic root of 742619 is about 90.5569983725.

The spelling of 742619 in words is "seven hundred forty-two thousand, six hundred nineteen".