1672635481 has 8 divisors (see below), whose sum is σ = 1825042464. Its totient is φ = 1520286720.

The previous prime is 1672635403. The next prime is 1672635499. The reversal of 1672635481 is 1845362761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672635481 is a prime.

It is a super-2 number, since 2×1672635481² = 5595418904600202722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672635401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63961 + ... + 86233.

It is an arithmetic number, because the mean of its divisors is an integer number (228130308).

Almost surely, 2^1672635481 is an apocalyptic number.

1672635481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1672635481 is a deficient number, since it is larger than the sum of its proper divisors (152406983).

1672635481 is a wasteful number, since it uses less digits than its factorization.

1672635481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29111.

The product of its digits is 241920, while the sum is 43.

The square root of 1672635481 is about 40897.8664602446. The cubic root of 1672635481 is about 1187.0447776258.

The spelling of 1672635481 in words is "one billion, six hundred seventy-two million, six hundred thirty-five thousand, four hundred eighty-one".