47388155 has 8 divisors (see below), whose sum is σ = 57798384. Its totient is φ = 37288800.

The previous prime is 47388149. The next prime is 47388161. The reversal of 47388155 is 55188374.

It is an interprime number because it is at equal distance from previous prime (47388149) and next prime (47388161).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47388155 - 2⁶ = 47388091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77381 + ... + 77990.

It is an arithmetic number, because the mean of its divisors is an integer number (7224798).

Almost surely, 2^47388155 is an apocalyptic number.

47388155 is a deficient number, since it is larger than the sum of its proper divisors (10410229).

47388155 is a wasteful number, since it uses less digits than its factorization.

47388155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155437.

The product of its digits is 134400, while the sum is 41.

The square root of 47388155 is about 6883.9055048715. The cubic root of 47388155 is about 361.8733493640.

The spelling of 47388155 in words is "forty-seven million, three hundred eighty-eight thousand, one hundred fifty-five".