61623400 has 24 divisors (see below), whose sum is σ = 143274870. Its totient is φ = 24649280.

The previous prime is 61623391. The next prime is 61623407. The reversal of 61623400 is 432616.

It can be written as a sum of positive squares in 3 ways, for example, as 22410756 + 39212644 = 4734^2 + 6262^2 .

It is not an unprimeable number, because it can be changed into a prime (61623407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153859 + ... + 154258.

Almost surely, 2^61623400 is an apocalyptic number.

It is an amenable number.

61623400 is an abundant number, since it is smaller than the sum of its proper divisors (81651470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61623400 is a wasteful number, since it uses less digits than its factorization.

61623400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308133 (or 308124 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 61623400 is about 7850.0573246315. The cubic root of 61623400 is about 394.9861662623.

The spelling of 61623400 in words is "sixty-one million, six hundred twenty-three thousand, four hundred".