103480821 has 56 divisors (see below), whose sum is σ = 169283840. Its totient is φ = 62985600.

The previous prime is 103480807. The next prime is 103480847. The reversal of 103480821 is 128084301.

103480821 is a `hidden beast` number, since 103 + 480 + 82 + 1 = 666.

It is not a de Polignac number, because 103480821 - 2⁷ = 103480693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103480801) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 429261 + ... + 429501.

Almost surely, 2^103480821 is an apocalyptic number.

It is an amenable number.

103480821 is a deficient number, since it is larger than the sum of its proper divisors (65803019).

103480821 is an equidigital number, since it uses as much as digits as its factorization.

103480821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 103480821 is about 10172.5523345914. The cubic root of 103480821 is about 469.4830909812.

The spelling of 103480821 in words is "one hundred three million, four hundred eighty thousand, eight hundred twenty-one".