48015997 has 4 divisors (see below), whose sum is σ = 48044160. Its totient is φ = 47987836.

The previous prime is 48015953. The next prime is 48016057. The reversal of 48015997 is 79951084.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48015997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48015937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11347 + ... + 14992.

It is an arithmetic number, because the mean of its divisors is an integer number (12011040).

Almost surely, 2^48015997 is an apocalyptic number.

It is an amenable number.

48015997 is a deficient number, since it is larger than the sum of its proper divisors (28163).

48015997 is a wasteful number, since it uses less digits than its factorization.

48015997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28162.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 48015997 is about 6929.3576181346. The cubic root of 48015997 is about 363.4644869685.

The spelling of 48015997 in words is "forty-eight million, fifteen thousand, nine hundred ninety-seven".