20460077 has 4 divisors (see below), whose sum is σ = 22320096. Its totient is φ = 18600060.

The previous prime is 20460053. The next prime is 20460091. The reversal of 20460077 is 77006402.

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 20460077 - 2⁸ = 20459821 is a prime.

It is a super-2 number, since 2×20460077² = 837229501691858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929993 + ... + 930014.

It is an arithmetic number, because the mean of its divisors is an integer number (5580024).

Almost surely, 2^20460077 is an apocalyptic number.

It is an amenable number.

20460077 is a deficient number, since it is larger than the sum of its proper divisors (1860019).

20460077 is a wasteful number, since it uses less digits than its factorization.

20460077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860018.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20460077 is about 4523.2816626869. The cubic root of 20460077 is about 273.5074043228.

Adding to 20460077 its reverse (77006402), we get a palindrome (97466479).

The spelling of 20460077 in words is "twenty million, four hundred sixty thousand, seventy-seven".