20496807 has 12 divisors (see below), whose sum is σ = 30703400. Its totient is φ = 13664376.

The previous prime is 20496803. The next prime is 20496811. The reversal of 20496807 is 70869402.

It is an interprime number because it is at equal distance from previous prime (20496803) and next prime (20496811).

It is not a de Polignac number, because 20496807 - 2² = 20496803 is a prime.

It is a super-3 number, since 3×20496807³ (a number of 23 digits) contains 333 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 (20496803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41932 + ... + 42417.

Almost surely, 2^20496807 is an apocalyptic number.

20496807 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20496807 is a deficient number, since it is larger than the sum of its proper divisors (10206593).

20496807 is an frugal number, since it uses more digits than its factorization.

20496807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84364 (or 84352 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20496807 is about 4527.3399474747. The cubic root of 20496807 is about 273.6709736234.

The spelling of 20496807 in words is "twenty million, four hundred ninety-six thousand, eight hundred seven".