612738077 has 8 divisors (see below), whose sum is σ = 700449216. Its totient is φ = 525071232.

The previous prime is 612738059. The next prime is 612738079. The reversal of 612738077 is 770837216.

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

It is a de Polignac number, because none of the positive numbers 2^k-612738077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612738079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27578 + ... + 44564.

It is an arithmetic number, because the mean of its divisors is an integer number (87556152).

Almost surely, 2^612738077 is an apocalyptic number.

It is an amenable number.

612738077 is a deficient number, since it is larger than the sum of its proper divisors (87711139).

612738077 is a wasteful number, since it uses less digits than its factorization.

612738077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22147.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 612738077 is about 24753.5467559701. The cubic root of 612738077 is about 849.3596455018.

The spelling of 612738077 in words is "six hundred twelve million, seven hundred thirty-eight thousand, seventy-seven".