22978077 has 8 divisors (see below), whose sum is σ = 30670560. Its totient is φ = 15302160.

The previous prime is 22978069. The next prime is 22978091. The reversal of 22978077 is 77087922.

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

It is not a de Polignac number, because 22978077 - 2³ = 22978069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22978477) 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, 427 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (3833820).

Almost surely, 2^22978077 is an apocalyptic number.

It is an amenable number.

22978077 is a deficient number, since it is larger than the sum of its proper divisors (7692483).

22978077 is a wasteful number, since it uses less digits than its factorization.

22978077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 22978077 is about 4793.5453476524. The cubic root of 22978077 is about 284.2963126008.

The spelling of 22978077 in words is "twenty-two million, nine hundred seventy-eight thousand, seventy-seven".