19950765 has 16 divisors (see below), whose sum is σ = 32021568. Its totient is φ = 10606976.

The previous prime is 19950761. The next prime is 19950767. The reversal of 19950765 is 56705991.

It is a cyclic number.

It is not a de Polignac number, because 19950765 - 2² = 19950761 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19950761) 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, 3289 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (2001348).

Almost surely, 2^19950765 is an apocalyptic number.

19950765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19950765 is a deficient number, since it is larger than the sum of its proper divisors (12070803).

19950765 is a wasteful number, since it uses less digits than its factorization.

19950765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 19950765 is about 4466.6279227175. The cubic root of 19950765 is about 271.2188380463.

The spelling of 19950765 in words is "nineteen million, nine hundred fifty thousand, seven hundred sixty-five".