20147896 has 8 divisors (see below), whose sum is σ = 37777320. Its totient is φ = 10073944.

The previous prime is 20147893. The next prime is 20147899. The reversal of 20147896 is 69874102.

It is an interprime number because it is at equal distance from previous prime (20147893) and next prime (20147899).

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20147891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259236 + ... + 1259251.

It is an arithmetic number, because the mean of its divisors is an integer number (4722165).

Almost surely, 2^20147896 is an apocalyptic number.

It is an amenable number.

20147896 is a deficient number, since it is larger than the sum of its proper divisors (17629424).

20147896 is a wasteful number, since it uses less digits than its factorization.

20147896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518493 (or 2518489 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 20147896 is about 4488.6407742211. The cubic root of 20147896 is about 272.1092049961.

The spelling of 20147896 in words is "twenty million, one hundred forty-seven thousand, eight hundred ninety-six".