48997831 has 2 divisors, whose sum is σ = 48997832. Its totient is φ = 48997830.

The previous prime is 48997807. The next prime is 48997841. The reversal of 48997831 is 13879984.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 48997831 - 2¹³ = 48989639 is a prime.

It is a super-2 number, since 2×48997831² = 4801574885409122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48997801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24498915 + 24498916.

It is an arithmetic number, because the mean of its divisors is an integer number (24498916).

Almost surely, 2^48997831 is an apocalyptic number.

48997831 is a deficient number, since it is larger than the sum of its proper divisors (1).

48997831 is an equidigital number, since it uses as much as digits as its factorization.

48997831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 49.

The square root of 48997831 is about 6999.8450697140. The cubic root of 48997831 is about 365.9251715797.

The spelling of 48997831 in words is "forty-eight million, nine hundred ninety-seven thousand, eight hundred thirty-one".