742172077 has 8 divisors (see below), whose sum is σ = 786571776. Its totient is φ = 697854912.

The previous prime is 742172071. The next prime is 742172107. The reversal of 742172077 is 770271247.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742172077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742172071) 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, 1603 + ... + 38560.

It is an arithmetic number, because the mean of its divisors is an integer number (98321472).

Almost surely, 2^742172077 is an apocalyptic number.

It is an amenable number.

742172077 is a deficient number, since it is larger than the sum of its proper divisors (44399699).

742172077 is a wasteful number, since it uses less digits than its factorization.

742172077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41267.

The product of its (nonzero) digits is 38416, while the sum is 37.

The square root of 742172077 is about 27242.8353333496. The cubic root of 742172077 is about 905.3882838807.

The spelling of 742172077 in words is "seven hundred forty-two million, one hundred seventy-two thousand, seventy-seven".