742250077 has 4 divisors (see below), whose sum is σ = 743034816. Its totient is φ = 741465340.

The previous prime is 742250071. The next prime is 742250123. The reversal of 742250077 is 770052247.

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 742250077 - 2¹⁵ = 742217309 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 (742250071) 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, 390949 + ... + 392842.

It is an arithmetic number, because the mean of its divisors is an integer number (185758704).

Almost surely, 2^742250077 is an apocalyptic number.

It is an amenable number.

742250077 is a deficient number, since it is larger than the sum of its proper divisors (784739).

742250077 is an equidigital number, since it uses as much as digits as its factorization.

742250077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784738.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 742250077 is about 27244.2668647919. The cubic root of 742250077 is about 905.4200006099.

The spelling of 742250077 in words is "seven hundred forty-two million, two hundred fifty thousand, seventy-seven".