83401560 has 96 divisors (see below), whose sum is σ = 295710480. Its totient is φ = 20217600.

The previous prime is 83401559. The next prime is 83401561. The reversal of 83401560 is 6510438.

It is an interprime number because it is at equal distance from previous prime (83401559) and next prime (83401561).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83401561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6571 + ... + 14490.

Almost surely, 2^83401560 is an apocalyptic number.

It is an amenable number.

83401560 is an abundant number, since it is smaller than the sum of its proper divisors (212308920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83401560 is a wasteful number, since it uses less digits than its factorization.

83401560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21089 (or 21082 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 83401560 is about 9132.4454556269. The cubic root of 83401560 is about 436.9094028180.

Adding to 83401560 its reverse (6510438), we get a palindrome (89911998).

The spelling of 83401560 in words is "eighty-three million, four hundred one thousand, five hundred sixty".