611728395 has 8 divisors (see below), whose sum is σ = 978765456. Its totient is φ = 326255136.

The previous prime is 611728367. The next prime is 611728423. The reversal of 611728395 is 593827116.

It is an interprime number because it is at equal distance from previous prime (611728367) and next prime (611728423).

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

It is not a de Polignac number, because 611728395 - 2¹³ = 611720203 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, 20390932 + ... + 20390961.

It is an arithmetic number, because the mean of its divisors is an integer number (122345682).

Almost surely, 2^611728395 is an apocalyptic number.

611728395 is a deficient number, since it is larger than the sum of its proper divisors (367037061).

611728395 is a wasteful number, since it uses less digits than its factorization.

611728395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40781901.

The product of its digits is 90720, while the sum is 42.

The square root of 611728395 is about 24733.1436538100. The cubic root of 611728395 is about 848.8928584373.

The spelling of 611728395 in words is "six hundred eleven million, seven hundred twenty-eight thousand, three hundred ninety-five".