612053789 has 4 divisors (see below), whose sum is σ = 612249024. Its totient is φ = 611858556.

The previous prime is 612053731. The next prime is 612053791. The reversal of 612053789 is 987350216.

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 a cyclic number.

It is not a de Polignac number, because 612053789 - 2¹² = 612049693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612053719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92837 + ... + 99210.

It is an arithmetic number, because the mean of its divisors is an integer number (153062256).

Almost surely, 2^612053789 is an apocalyptic number.

It is an amenable number.

612053789 is a deficient number, since it is larger than the sum of its proper divisors (195235).

612053789 is a wasteful number, since it uses less digits than its factorization.

612053789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195234.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 612053789 is about 24739.7208755475. The cubic root of 612053789 is about 849.0433477081.

The spelling of 612053789 in words is "six hundred twelve million, fifty-three thousand, seven hundred eighty-nine".