49097811 has 16 divisors (see below), whose sum is σ = 75590144. Its totient is φ = 27765504.

The previous prime is 49097809. The next prime is 49097813. The reversal of 49097811 is 11879094.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49097809) and next prime (49097813).

It is not a de Polignac number, because 49097811 - 2¹ = 49097809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49097811.

It is not an unprimeable number, because it can be changed into a prime (49097813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10015 + ... + 14088.

It is an arithmetic number, because the mean of its divisors is an integer number (4724384).

Almost surely, 2^49097811 is an apocalyptic number.

49097811 is a deficient number, since it is larger than the sum of its proper divisors (26492333).

49097811 is a wasteful number, since it uses less digits than its factorization.

49097811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24210.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 49097811 is about 7006.9830169624. The cubic root of 49097811 is about 366.1738924045.

It can be divided in two parts, 4909 and 7811, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 49097811 in words is "forty-nine million, ninety-seven thousand, eight hundred eleven".