49197901 has 4 divisors (see below), whose sum is σ = 50527612. Its totient is φ = 47868192.

The previous prime is 49197887. The next prime is 49197919. The reversal of 49197901 is 10979194.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10979194 = 2 ⋅5489597.

It can be written as a sum of positive squares in 2 ways, for example, as 36602500 + 12595401 = 6050^2 + 3549^2 .

It is a cyclic number.

It is not a de Polignac number, because 49197901 - 2⁷ = 49197773 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 (49197101) 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, 664800 + ... + 664873.

It is an arithmetic number, because the mean of its divisors is an integer number (12631903).

Almost surely, 2^49197901 is an apocalyptic number.

It is an amenable number.

49197901 is a deficient number, since it is larger than the sum of its proper divisors (1329711).

49197901 is a wasteful number, since it uses less digits than its factorization.

49197901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329710.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 49197901 is about 7014.1215415760. The cubic root of 49197901 is about 366.4225488950.

The spelling of 49197901 in words is "forty-nine million, one hundred ninety-seven thousand, nine hundred one".