342621077 has 4 divisors (see below), whose sum is σ = 362775276. Its totient is φ = 322466880.

The previous prime is 342621067. The next prime is 342621089. The reversal of 342621077 is 770126243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 770126243 = 5641 ⋅136523.

It can be written as a sum of positive squares in 2 ways, for example, as 177395761 + 165225316 = 13319^2 + 12854^2 .

It is not a de Polignac number, because 342621077 - 2⁴ = 342621061 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 (342621007) 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, 10077074 + ... + 10077107.

It is an arithmetic number, because the mean of its divisors is an integer number (90693819).

Almost surely, 2^342621077 is an apocalyptic number.

It is an amenable number.

342621077 is a deficient number, since it is larger than the sum of its proper divisors (20154199).

342621077 is a wasteful number, since it uses less digits than its factorization.

342621077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20154198.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 342621077 is about 18510.0263911211. The cubic root of 342621077 is about 699.7421342709.

The spelling of 342621077 in words is "three hundred forty-two million, six hundred twenty-one thousand, seventy-seven".