78849001 has 24 divisors (see below), whose sum is σ = 100885824. Its totient is φ = 59847840.

The previous prime is 78848989. The next prime is 78849019. The reversal of 78849001 is 10094887.

It is not a de Polignac number, because 78849001 - 2⁹ = 78848489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78849041) 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, 567190 + ... + 567328.

It is an arithmetic number, because the mean of its divisors is an integer number (4203576).

Almost surely, 2^78849001 is an apocalyptic number.

It is an amenable number.

78849001 is a deficient number, since it is larger than the sum of its proper divisors (22036823).

78849001 is a wasteful number, since it uses less digits than its factorization.

78849001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 78849001 is about 8879.6959970485. The cubic root of 78849001 is about 428.8104874896.

The spelling of 78849001 in words is "seventy-eight million, eight hundred forty-nine thousand, one".