47037797 has 4 divisors (see below), whose sum is σ = 48659820. Its totient is φ = 45415776.

The previous prime is 47037779. The next prime is 47037811. The reversal of 47037797 is 79773074.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33744481 + 13293316 = 5809^2 + 3646^2 .

It is a cyclic number.

It is not a de Polignac number, because 47037797 - 2⁶ = 47037733 is a prime.

It is a super-2 number, since 2×47037797² = 4425108693226418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47037707) 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, 810968 + ... + 811025.

It is an arithmetic number, because the mean of its divisors is an integer number (12164955).

Almost surely, 2^47037797 is an apocalyptic number.

It is an amenable number.

47037797 is a deficient number, since it is larger than the sum of its proper divisors (1622023).

47037797 is a wasteful number, since it uses less digits than its factorization.

47037797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622022.

The product of its (nonzero) digits is 259308, while the sum is 44.

The square root of 47037797 is about 6858.4106759511. The cubic root of 47037797 is about 360.9793216671.

The spelling of 47037797 in words is "forty-seven million, thirty-seven thousand, seven hundred ninety-seven".