20077694 has 32 divisors (see below), whose sum is σ = 37449216. Its totient is φ = 7860960.

The previous prime is 20077693. The next prime is 20077703. The reversal of 20077694 is 49677002.

It is a super-2 number, since 2×20077694² = 806227592715272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20077693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18959 + ... + 19989.

It is an arithmetic number, because the mean of its divisors is an integer number (1170288).

Almost surely, 2^20077694 is an apocalyptic number.

20077694 is a deficient number, since it is larger than the sum of its proper divisors (17371522).

20077694 is a wasteful number, since it uses less digits than its factorization.

20077694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 20077694 is about 4480.8139885516. The cubic root of 20077694 is about 271.7927974321.

The spelling of 20077694 in words is "twenty million, seventy-seven thousand, six hundred ninety-four".